The following warnings occurred:
Warning [2] Undefined array key 251012 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251013 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251024 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251026 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251028 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251029 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251031 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251040 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251045 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251046 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251047 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251049 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251058 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251079 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251080 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251081 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251099 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251100 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251112 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251113 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251128 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251130 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251131 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251143 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251147 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251160 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251165 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251168 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251169 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251170 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251178 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251183 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251184 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251186 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251187 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251189 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251201 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251208 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251210 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251212 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251213 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251217 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251222 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251227 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251229 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251274 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251280 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251296 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251307 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251361 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251442 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251847 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251862 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined variable $thread - Line: 295 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 295 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Trying to access array offset on value of type null - Line: 295 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 295 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined variable $fid - Line: 295 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 295 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 251168 - Line: 331 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 331 errorHandler->error_callback
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
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HHC 2013 programming contest winners



#44

RPL - Bill Butler

RPN - Eric Smith

Eric's solution was 19 steps and used no data storage registers.

Edited: 22 Sept 2013, 4:57 p.m.


#45

My RPN entry as submitted was:

HHC 2013 RPN Programming Contest entry
Eric Smith <spacewar@gmail.com>
September 21, 2013

WP-34S version:

01: CONST #000
02: CONST #001
03: LBL 01
04: RCL Z
05: x = 0?
06: GTO 02
07: IP
08: STO- T
09: RCL* Y
10: STO+ Z
11: RDN
12: CONST #010
13: STO* T
14: CLx
15: CONST #008
16: /
18: GTO 01
18: LBL 02
19: RCL Z


HP-42S and HP-41: replace CONST lines with ordinary numeric entry lines

HP-41C: replace "RCL* Y" with "x<>y STO* Y x<>y"


#46

Hi Eric,

There may be an error on the transcription of your solution. When I try it as written in your post, the value in T is lost after 12: and the program returns always 1.

If, for example, I make the following change, then the program runs correctly :

01: c# 001      (saves one step)
02: LBL 01
03: RCL Z
04: x = 0?
05: GTO 02
06: IP
07: STO- T
08: RCL* Y
09: STO+ Z
10: RDN
11: x <> T
12: SDL 001
13: STO T
14: CLx
15: CONST #008
16: /
17: GTO 01
18: LBL 02
19: RCL Z

Or perhaps there is something I am not seeing? Forgive me if am mistaken.

Miguel


#47

CLx after STO* T is not disabling the stack lift as it should. Same here (v3.2r3382), but it does work on the emulator and on the HP-42S. Probably an old wp34s bug that's already been fixed. What is the version of your wp34s?

Best regards,

Gerson

PS.: This is Eric's program optimized for the wp34s:

01: CPX CONST #001              ;   CPX 1
02: RCL Z
03: x = 0?
04: SKIP 11
05: IP
06: STO- T
07: RCL* Y
08: STO+ Z
09: RDN
10: CONST #010
11: STO* T
12: CLx
13: CONST #008
14: /
15: BACK 013
16: RCL Z


Edited: 24 Sept 2013, 1:57 p.m.


#48

Quote:
CLx after STO* T is not disabling the stack lift as it should. Same here (v3.2r3382), but it does work on the emulator and on the HP-42S. Probably an old wp34s bug that's already been fixed.

Indeed. Everything works fine on my hardware 34s with v. 3.2 3405.

Dieter

#49

Hello Gerson,

I am using V 3.2 3450. Physical device (not the emulator).

Regards,

Miguel


#50

Strange, that's more recent than the emulator version (3448).

Regards,

Gerson.

P.S.: Eric Smith's solution works for arguments up to 7.77777777777

3.11037552421  -->  3.14159265358
7.77777777777 --> 7.99999999988


Edited: 24 Sept 2013, 3:07 p.m.


#51

Well, I really do not get it. Could someone try it with version 3.2 3450 ? I think it is behaving correctly:

Suppose x = 0.5 						

t: - - 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0 <-- value lost after 10: const #10
z: - 0.5 0 0 0 0 0 0 0 0 1
y: - 0 1 1 1 1 1 1 1 1 0
x: 0.5 1 0.5 0.5 0.5 0 0 0 0 0 10
steps: - 01 02 03 04 05 06 07 08 09 10

I do not think it is because of the CLx not disabling the stack lift. The version on post #2, works because Clx disable the stack lift

Edited: 24 Sept 2013, 3:45 p.m.


#52

Hello Miguel

Quote:
I do not think it is because of the CLx not disabling the stack lift.

You are right. It turns out I was getting wrong results on the wp34c because my last line was RCL 2 instead of RCL Z. Sorry about the confusion. I will check it again step by step.

Gerson.

P.S.:

Quote:
The version on post #2, works because Clx disable the stack lift

I meant CLx disabled the stack lift (so that 8 replaces the 10 that was previously there).


Edited: 24 Sept 2013, 4:32 p.m.

#53

Aren't you confusing RDN with RND? In Eric Smith's notation RDN means Rv (Roll stack down). That's the first thing I had checked previously, but I didn't detect it because I had introduced an error myself.

Regards,

Gerson.

Edited: 24 Sept 2013, 4:29 p.m.


#54

Or you could use DROP instead of Rv in this instance. It will also be imperceptibly faster.

At one point we had a display of program checksums in the 34S firmware which would help avoid this kind of thing. I don't remember exactly why they were removed -- I suspect due to opcodes changing but aren't certain anymore.


- Pauli

#55

Yes. I was confusing those two and confused myself :-)

Thank you Gerson.

Regards,

Miguel

#56

For the record: this one is even one step shorter.

01: CPX CONST #001
02: RCL Z
03: x = 0?
04: SKIP 10
05: IP
06: STO- T
07: RCL* Y
08: STO+ Z
09: X<> T
10: SDL 001
11: CONST #008
12: STO/ Z
13: <> ZTYY
14: BACK 012
15: RCL Z
Yes, I like these 34s stack shuffle commands. :-)

Dieter


#57

Quote:
Yes, I like these 34s stack shuffle commands. :-)

Me too, but they won't help here, it appears.

Gerson.

001  SDR 001
002 C #001
003 RCL Z
004 SDL 001
005 IP
006 t<> L
007 RCL* Y
008 STO+ Z
009 DROP
010 8
011 /
012 R^
013 FP
014 x#0?
015 BACK 011
016 RCL Z

Edited to correct misspelling.

Edited: 25 Sept 2013, 2:41 p.m. after one or more responses were posted


#58

This piece of code almost makes me wish I'd implemented the integer mode shifts in real mode too :)

- Pauli


#59

SDL and SDR are great but binary shifts would be handy in a lot of situations as well. No more room or just a matter of design philosophy?

Gerson.


#60

A bit of both really. Flash is basically full so finding space would take lots of effort or lose something else.

We'd also have had to convince Walter that they were useful (well, Marcus and I would also need convincing too I suspect). Two of the shifts would map to *2^x and /2^x in real mode and the rest still do nothing introducing a small inconsistency.

The alternative is 2^x * or 2^x / so these would only save one step. There would only be a performance boost if the algorithm were coded to deal with integers only -- either another inconsistency or more core. Both options are bad.


- Pauli


#61

While bit shifts for reals would be nice, I personally do not see a big advantage for real life applications. With one exception: doubling or halving a number is a common operation. A dedicated command (if possible, without affecting the stack) would add very nicely to the existing INC and DEC commands. Yes, we already had that discussion some time ago, but I still consider such commands very useful for every-day-programming. So please forgive me if I dig out this idea once again.

Dieter

#62

Congrats Bill and Eric.

Now that the contest is over I guess we can share our results.

I selected to use the 12C because it was designed to solve this problem (indirectly of course :-).

Embedded in the 12C is the following function:

To use: set CF0 to 0, then set CFj (j=1 to n number of digits) to each octal-decimal digit, then set your base (-1 then 100x), and then press NPV.

Code:

01 -    43 25  INTG        ; LSTx = x, x = int(x) (0 or 1)
02 - 43 35 x=0 ; if x=0
03 - 43,33 05 GTO 05 ; then LSTx < 1, continue with x = 0
04 - 43,33 00 GTO 00 ; else end program and leave x = 1
05 - 43 13 CFo ; x = 0, CFo = x, n = 1
06 - 43 36 LSTx ; x = LSTx
07 - 43 35 x=0 ; if x=0
08 - 43,33 17 GTO 17 ; then no digits left, continue with NPV setup and NPV
09 - 1 1 ; x = x * 10
10 - 0 0 ;
11 - 20 x ;
12 - 36 ENTER ; y = x
13 - 43 24 FRAC ; x = value right of decimal
14 - 30 - ; x = y - x, i.e. value left of decimal, LSTx = right of decimal
15 - 43 14 CFj ; CFn = int(x), n = n + 1
16 - 43,33 06 GTO 06 ; loop up for next digit
17 - 7 7 ; sto 700 in i
18 - 0 0 ; NOTE: i = i / 100
19 - 0 0 ;
20 - 12 i ;
21 - 42 13 NPV ; do it, x = answer

Thanks again Gene for the challenge. It was fun to finally use NPV.

#63

WP34S program. Seventeen steps. Executition time three ticks for any input.

	# 099		// Scaling factor
STO K // Into loop counting register
# 000 // Result
RCL Z // Stack rearrangement to get the input in X
SDL[->]K // Scale the input
// Add IP here to avoid problems for 10^-100 arguments
RCL X // Begin loop
# 010 // Extract lowest digit
MOD
RCL+ T // Accumulate digit into result
# 008 // Push result one octal digit
/
x[<->] Y // Get original number back
SDR 001 // Shift it and trim final digit off
IP
DSZ K // Loop until done
BACK 010
+ // Could use x[<->] Y here but that doesn't handle 1 as input

Some results:

Input		Result			True			Delta
0.5 0.625 0.625 0
0.75 0.953125 0.953125 0
0.1 0.125 0.125 0
0.777777777 0.9999999925494194 0.9999999925494194 0
0 0 0 0
1 1 1 0
1e-95 1.60861174670876E-86 1.608611746708759E-86 1e-101

This routine handles inputs from 1e-99 through 1 plus 0. The range can be altered by changing the constant on the first line, decreasing this reduces execution time. E.g. if the lower limit is restricted to 1e-16, change this constant to 16 and the execution time will be essentially zero.

Take the LBLs out of Eric's solution using BACK and SKIP and his program is one step shorter than this and a bit faster.


- Pauli

Edited: 22 Sept 2013, 5:30 p.m.


#64

One of the things I like about the programming challenges is that I always learn new techniques from the other participants. Even though I had the winning RPN entry this year, and used a WP-34S, I wasn't familiar with the SDL, SDR, SKIP, and BACK instructions.

My program produces correct results over the domain [0 to 7.777...]

#65

Although my stab at this uses 3 registers, it did come in at 15 steps on the WP-34S. It handles values down to 1e-99


CLREGS
INC 00
STO 01
x=0?
SKIP 009
IP
RCL/ 00
STO+ 02
8
STOx 00
RCL 01
FP
SDL 001
BACK 011
RCL 02

#66

No numbered register was killed during the execution of this program, but down to 17 steps only:

001   C# 001
002 RCL Z
003 SDL 001
004 IP
005 8
006 STO* Z
007 Rv
008 t<> L
009 RCL/ Y
010 STO+ Z
011 <-> TYZT
012 FP
013 x#0?
014 BACK 011
015 RCL Z
016 x>1?
017 IP

0.11037552421 --> 0.14159265358

#67

Quote:
Take the LBLs out of Eric's solution using BACK and SKIP and his program is one step shorter than this and a bit faster.

One more step can be save by replacing steps 001 and 002 with

01: C# 001

#68

The baton has passed. Others are exploiting the 34S function set better than I :-)

Congratulations to all,

Pauli

#69

Here are mine:

WP-34S:

001 # 000
002 # 008
003 RCL Z
004 SDL 001
005 IP
006 STO+ Z
007 8
008 STO* T
009 STO* Z
010 Rv
011 x<> L
012 FP
013 x#0?
014 BACK 010
015 Rv
016 /
017 x>1?
018 IP


HP-15C:

001- f MATRIX 1
002- f LBL 0
003- 8
004- STO* 1
005- x<>y
006- 1
007- 0
008- *
009- g INT
010- RCL/ 1
011- STO- 0
012- LSTx
013- f FRAC
014- g TEST 0
015- GTO 0
016- 1
017- RCL 0
018- g TEST 2
019- g INT
020- -


#70

Quote:
001   # 000
002 # 008

These can of course be replaced with

Quote:
001   C# 008

QBASIC equivalent of the first program:

DEFDBL A-Z
DEFINT D
DEF FNFRAC (NN) = NN - INT(NN)
CLS
INPUT N
P = 8
S = 0
DO
N = 10 * N
D = INT(N)
P = P * 8
S = 8 * (S + D)
N = FNFRAC(N)
LOOP UNTIL N = 0
R = S / P
IF R > 1 THEN R = 1
PRINT R

? 0.11037552421
.141592653584667

#71

My (non-winning) RPL entry was:

148 bytes (not including a global name)

« UNROT
« { } SWAP 1 12 START
10 DUP2 MOD UNROT / IP UNROT + SWAP
NEXT DROP »
ROT OVER EVAL UNROT EVAL
ADD SWAP MOD REVLIST
« SWAP 10 * + » STREAM
»

An earlier version used a logarithm to determine how many digits to use, but I made the tradeoff of assuming 12 digits for a slightly shorter program. Bill Butler's winning program is shorter than mine ever though it does compute the digit count with a logarithm.

Edited: 22 Sept 2013, 6:33 p.m.


#72

My RPL entry was (didn't win, I got it down to 168.5 bytes) - HP 50g


<< 'N' STO 0 UNROT
DUP2 XPON SWAP XPON
MAX 1 + 1 SWAP FOR
K DUP2 K ALOG / FP
1 ALOG * IP SWAP K
ALOG / FP 1 ALOG *
IP + N MOD K 1 - ALOG
4 ROLL + UNROT NEXT
DROP2 { N K } PURGE >>
#73

An RPL solution (HP 50g) to the RPN problem. The handling of 0 and 1 cases is left as an exercise to the reader.

%%HP: T(3)A(R)F(.);
\<< \->STR TAIL DUP SIZE SWAP "o" "# " ROT + SWAP + OBJ\-> B\->R 8. ROT ^ /
\>>

(63.5 bytes)

Input Result
0.5 0.625
0.75 0.953125
0.1 0.125
0.777777777 0.9999999925494

Gerson.


#74

Does this handle 1e-50 ?

- Pauli


#75

Only decimal numbers from 0.000000000001 through 0.777777777777, in this format only (the first zeroes may be omitted).

Gerson.


Edited: 22 Sept 2013, 11:04 p.m.

#76

I played with a few line non-iterated RPN approach which would use a built in octal to decimal conversion:
Multiply by 10^n (with n=number of digits for that calculator's precision)
convert that integer from octal to decimal
divide by 8^n
But, to my surprise, I don't see any RPN machines with base conversion except for display values only. So step 2 isn't available, even though the actual math is in many of them.

My congradulations to the winners - and all who submitted entries!


#77

That's what I have in my HP-41C with the Advantage Module right now:

01  OCTIN
02 ENTER^
03 LN
04 8
05 LN
06 /
07 1
08 +
09 INT
10 8
11 X<>Y
12 Y^X
13 /

R/S 5 R/S --> 0.625000000
R/S 75 R/S --> 0.953125000
R/S 777777777 R/S --> 0.999999993

Obviously 0 and 1 are not possible here.

Gerson.

Edited: 23 Sept 2013, 12:33 p.m.


#78

I am always very careful with INT commands following transcendetal functions like the logarithm here. Unexpected behaviour may occur due to roundoff errors. Your program evaluates the base-8 log - which may cause such a problem:

  8 ENTER 7 yx
=> 2097152
[LN]
=> 14,56609079 ; rounded down from ...79 17588 ...
8 [LN]
=> 2,079441542 ; rounded up from ...41 67983 ...
[/]
=> 6,999999998 ; so the quotient is below the true value
and INT(x) becomes 6 instead of 7
I do not know if this will also happen with the program you posted (my HP41 does not have an Advantage ROM, and I do not even know what exactly the OCTIN command does), but maybe you can try some integer powers of 8. If roundoff errors occur, using [LOG] instead of [LN] may give better results since lg 8 rounds much better to ten digits than ln 8.

Dieter


#79

OCTIN allows for the input of integer octal constants. For instance:

keystrokes                               display    

XEQ ALPHA OCTIN ALPHA _ O
75301 ENTER^ 31425 ; 753018 = 3142510

However a better program (better if DEC were not natively available) would be:

01  OCTIN
02 1073741824 ; 8^10
03 /

R/S 5000000000 R/S --> 0.625000000
R/S 7500000000 R/S --> 0.953125000
R/S 7777777770 R/S --> 0.999999993
R/3 7777777777 R/S --> 0.999999999

Gerson.

Edited: 24 Sept 2013, 10:25 a.m.

#80

Isn't this the basis for the five step 41 program? Using the OCT and DEC functions?

If not, I'd like to know how they were done.


- Pauli

#81

You can have on HP41 (naked) and also on HP65 (but in 20 steps)

01 1E10
02 *
03 DEC
04 1073741824
05 /

But that's cheating as told previously

(to have 1 working, use 1E9 and 134217728)


Edited: 24 Sept 2013, 3:28 a.m. after one or more responses were posted


#82

Thanks, it is as I thought.

- Pauli

#83

Quote:
But that's cheating as told previously

Why? Rule #4 says:

"No custom built ROM or machine code can be built and used for this problem. Any already existing functionality in the machine is ok."

I wasn't aware of that function, but DEC (octal to decimal conversion) is part of the HP-41 instruction set. So, that should be ok, except for the 1 case. Likewise, the equivalent HP-42S program should be ok too:

01 1E12
02 *
03 ->DEC
04 68719476736
05 /


#84

True, but that is why at the conference I had to put up some rule clarifications...such as

No base conversion functions allowed.

Wlodek came up with the large constant similar to what you indicated, but to keep things "fair" between machines, no base conversion functions were allowed.

We had entries for these machines:

HP 65 !

HP 29C

HP 41CX

HP 42S

WP 34S

HP 15c LE (by Bill Carter!) oops.

I especially like Egan's 12c approach. Fascinating! Wish you had been at the conference this year!

Thanks again all. I hope these problems were interesting.

Edited: 25 Sept 2013, 8:23 a.m. after one or more responses were posted


#85

Quote:
at the conference I had to put up some rule clarifications...such as

No base conversion functions allowed.


Eric Smith said in another thread: "There was another rules clarification at the conference that no base conversion functions can be used." I'd forgotten about that, sorry!

Quote:
Wlodek came up with the large constant similar to what you indicated,

That's 8^12, as Jim Horn has suggested. I kind of found the trick but I dumbly used different constants, according to the number of significant digits rather than the machine's number of digits.

Quote:
I especially like Egan's 12c approach. Fascinating!

Really fascinating, as non-conventional approaches usually are!

Quote:
Wish you had been at the conference this year!

I visited a forum member last month and I asked him about going to the next year's conference. He told me his English was not good enough to fully enjoy it. I told him not to worry much about that, but on second thought I realize I would need to go at least one month in advance to get used to spoken language. I still watch American movies with English subtitles on :-)

Thanks again for the interesting problems. They have the right difficulty level, the real challenge being size (or speed) optimization.

Gerson.

#86

Programs using DEC or ->DEC aren't going to correctly deal with really small numbers in the [0, 1] interval. Try 1e-50 and see what happens.

Actually, they might be able to with some extra steps -- get the exponent via LOG and IP. Then use these to calculate the required constants instead of hard coding them. I suspect this will still be shorter than the digit by digit approaches.


- Pauli

Edited: 24 Sept 2013, 4:19 p.m.


#87

Quote:
get the exponent via LOG and IP.
Or use EXPT and MANT to get the exponent and mantissa directly.

By the way, I noticed an inconsistency between the 34S manual and the software. On the last page of my manual (3.18 3242) it says that in version 3.0, "returned ->BIN, ->HEX, and ->OCT." These commands were removed in v2.1. But I can't find these commands in any of the menus or in the manual. Were they removed again?

Dave


#88

I don't remember what happened to these commands. I think we removed them because they didn't achieve anything useful -- it is easier to switch integer mode and switch back when done rather than introducing extra complexity in the display code. Walter might remember better.

I'm not sure I'd call this an inconsistency. These aren't documented in the command listing and the change log is known to not be totally complete and accurate. There have been a lot of changes and refinements and not everything made the last page.


- Pauli

#89

Gene-

No love at all for the 15c entrant? I'm not sure my wife really believes my account of where I was all weekend as it is!

-Bill

Edited: 25 Sept 2013, 12:05 a.m.

#90

Quote:
I especially like Egan's 12c approach.

Glad you liked it. When I read the challenge and given your financial background I had assumed you had NPV in mind.

Updated version that should support 0 through 7777777777 including fractional. I didn't have a lot of time to test or optimize it. Perhaps another day.

01 -    43 25  INTG        
02 - 44 48 1 STO .1
03 - 43 35 x=0
04 - 43,33 21 GTO 21
05 - 43 36 LSTx
06 - 1 1
07 - 0 0
08 - 43 36 LSTx
09 - 43 23 LN
10 - 1 1
11 - 0 0
12 - 43 23 LN
13 - 10 /
14 - 43 25 INTG
15 - 1 1
16 - 40 +
17 - 44 48 1 STO .1
18 - 21 y^x
19 - 10 /
20 - 43 25 INTG
21 - 43 13 CFo
22 - 43 36 LSTx
23 - 43 35 x=0
24 - 43,33 33 GTO 33
25 - 1 1
26 - 0 0
27 - 20 x
28 - 36 ENTER
29 - 43 24 FRAC
30 - 30 -
31 - 43 14 CFj
32 - 43,33 22 GTO 22
33 - 7 7
34 - 0 0
35 - 0 0
36 - 12 i
37 - 42 13 NPV
38 - 8 8
39 - 45 48 1 RCL .1
40 - 21 y^x
41 - 20 x

#91

HP-15C version as of last Sunday:

001- g x=0
002- g RTN
003- EEX
004- 9
005- *
006- STO RAN#
007- g LOG
009- g INT
009- 8
010- -
011- 8
012- x<>y
013- y^x
014- STO 1
015- g CLx
016- STO 0
017- RCL RAN#
018- f LBL 0
019- 1
020- 0
021- *
022- g INT
023- 8
024- STO/ 1
025- x<>y
026- RCL* 1
027- STO+ 0
028- g LSTx
029- f FRAC
030- g TEST 0
031- GTO 0
032- RCL 0


7777777777 --> 1073741823
1234567 --> 342391.0000
3.110375524 --> 3.141592651


#92

From my integer base conversion routine circa 1984, so some optimization is possible.

001- f LBL B		; define base
002- STO .0
003- g LOG
004- g INT
005- 1
006- +
007- STO .1
008- RCL .0
009- g RTN

010- f LBL E ; convert from decimal to defined base
011- STO 1
012- 0
013- STO I
014- STO 2
015- f LBL 4
016- RCL 1
017- g INT
018- RCL/ .0
019- STO 1
020- f FRAC
021- RCL* .0
022- RCL I
023- 10^x
024- *
025- STO+ 2
026- RCL .1
027- STO+ I
028- RCL 1
029- GTO 4
030- RCL 2
031- g RTN

8 GSB B --> 8.000000000 ; octal base

342391 GSB E --> 1234567.000
1073741823 GSB E --> 7777777778 ; the last digit should be a 7
25894 GSB E --> 62446.00000

16 GSB B --> 16.00000000 ; hexadecimal base

99774 GSB E --> 108051114 ; 1.08.05.11.14, that is, 185BE

257 GSB B --> 257.0000000 ; base 257

12345678 GSB E --> 186235169.0 ; 186.235.169257
123456789 GSB E --> 7070043158 ; 7.070.043.158257 ; the last digit should be a 7

This is subject to rounding error for large inputs, as we can see from the examples. I used it mainly for decimal to hexadecimal conversions -- no problem in the short range I used. Someone ought to have told me there was something called HP-16C :-)


Edited: 25 Sept 2013, 6:12 p.m.

#93

Hello,

Here is some HP Prime code for both contests.
Both are solved in 1 line of code (plus declarations) and no loops (at least that meets the eye).

note: replace SigmaList byt he appropriate symbol

export RplProgContest(Base, X, Y)
begin
SigmaList(((makelist(ip(fp(X:=X/10)*10),C,1,12)+
makelist(ip(fp(Y:=Y/10)*10),C,1,12)) mod Base)*
{1,10,100,1000,10000,100000,..,100000000000});
end;

note, you can replace the {1,10..} by makelist(10^A,A,0,11), smaller, but slower

export RpnProgContest(X)
begin
SigmaList(makelist((ip(X) mod 10)*1/8^C + (0*(X:=X*10)),C,0,12));
end;

Cyrille


#94

That's a heck of a single line of code Cyrille!

:-)

How are the renovations going?

Geoff

#95

Quote:
export RpnProgContest(X) begin SigmaList(makelist((ip(X) mod 10)*1/8^C + (0*(X:=X*10)),C,0,12)); end;

Reminds me this can be done on the HP-17BII as well, in one line of code so to say:

0*L(X:X/10)+SIGMA(C:0:11:1:0*L(T:X)+L(X:(IP(10*X)))/8^C+0*L(X:FP(10*G(T))))=D

Gerson.

#96

Over the past couple of days I've put together a solution to the RPL problem that takes a different approach. This converts the digits to binary and then does carry-free addition with bit twiddling.

At 281 bytes, it's huge, but because there are NO LOOPS it's very fast.

For base 2 you just XOR the numbers.

For base 8, you covert the octal digits as a hex number (e.g., 77. to #77h), thus there is one extra bit to the left of each octet. Now you can add the numbers and any carry goes into the extra bit, which is then masked out.

Base 10... oh you silly base 10.... As with base 8, I convert the digits in hex mode (e.g., 94. to #94h). So each digit occupies 4 bits. The trick is to add them while subtracting 10 from the sum in such a way that the sum is never greater than 15, which would cause it to spill over to the next digit's bits. If two digits are A and B, the code says "if A is greater than 5 then subtract 5 from it and add 5 to B. If B is now greater than 10 then subtract 10 from it. Now A is in the range [0..5] and B is [0..9], so you can add them and the result is [0..14] which still fits in 4 bits. If the sum is greater than 10 then subtract 10." All of this is done with bit manipulation on all digits simultaneously.

I may write this up in a Datafile article.

Replace the ">" characters with the right arrow. Sorry, I keep forgetting now to convert a listing to ascii. :(

«
{ { R>I >STR "#" SWAP + OBJ> }
SWAP OVER EVAL UNROT EVAL } @ You now have binaries with the same digits

SWAP CASE
DUP 2. == THEN
@ This is easy. Convert to binary and XOR together
BIN DROP EVAL
XOR

END
DUP 8. == THEN
HEX DROP EVAL
ADD #7777777777777777h AND

END
@ It better be 10
HEX DROP EVAL

DUPDUP SL AND @ a & (a<<1)
OVER SR OR #4444444444444444h AND @ x.4 = a.8 | (a.4 & a.2)
@ level 1 now contains 4 if a>5. subtract from a and add
@ to b
SWAP OVER -
UNROT +
@ b a
{ DUPDUP SL OR @ b | (b<<1)
SL OVER AND @ b.8 & (b.4 | b.2)
#8888888888888888h AND
DUP SR SR OR
-
}
SWAP OVER EVAL @ sub10(b)
@ b Sub10 a
ROT + @ a+b Sub10
SWAP EVAL @ here is the answer, but in hex

END

@ Level 1 contains a binary number reprenting the answer.
@ convert the digits to a real.
>STR
DUP SIZE 1. - 2. SWAP SUB @ take off the h
OBJ>

»


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