The following warnings occurred:
Warning [2] Undefined array key 88708 - 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 88825 - 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 89016 - 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 89022 - 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 89127 - 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 88825 - 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
/inc/plugins/threaded_mode.php 304 ThreadedMode::buildtree
/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 89127 - 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
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 304 ThreadedMode::buildtree
/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 89022 - 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
/inc/plugins/threaded_mode.php 304 ThreadedMode::buildtree
/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 $theme - Line: 3 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 3 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/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: 3 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 3 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/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 $theme - Line: 3 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 3 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/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: 3 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 3 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/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 $lang - Line: 5 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 5 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/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] Attempt to read property "messages_in_thread" on null - Line: 5 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 5 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks





12c TVM



#6

Try this example taken from Hp Journal (oct. 77) :

n=111.1111111
i=2.222222222
PV=333.3333333
PMT=4.444444444

and solve for FV

Results

HP92 : -5931.82294 (source HP Journal)

HP37E : -5931.82294

HP38E/C : -5931.82294

HP12C : -5926.306294 ???

HP10B : -5931.82294

HP17BII : -5931.82294

HP10B : -5931.82294

HP48G : -5931.82294

All but the 12C give the correct mathematical result (-5931.82294) but only the 12C gives the correct financial result(-5926.306294). In case of noninteger n, the 12c use the fractional part as a odd first period (cf hp 12c user's manual pp.50-51). With others calculators you'll have to do it yourselve (cf hp17BII owner's manual p.160).

Does anyone knows why the 12c is the only calculating with odd period ?







#7

Hi, Lary;

in fact, you can even control how the HP12C TVM features deal with the odd 'n' (with fractional portion different of zero).

If you press [STO][EEX] you will toggle the small C annunciator status. If the C is visible, then the fractional portion of 'n' is considered as part of the compound interest calculation. Otherwise, if the C is not visible, the fractional portion of 'n' is used seaparately, and the equivalent amount of interest due to it is computed as single interest and added to the final interest amount. In fact, as we are dealing with compound interest and a fractional period of time, the final amount of compound interest is smaller than the amount of single interest.

I am not sure if the other calculators have this sort of control.

I hope this post's contents are related to what you are asking about.

Cheers.

Luiz (Brazil)

#8

"Lary" --

The odd-period handling looks like a practical, real-world enhancement, designed to handle, in one step, the interest-accruing partial period after which a loan is initiated to the start date of the first regular period. The two examples of loans on pp. 59-61 (as well as my own new-car loan in the 1980's) were set up like this.

The example from the 1977 HP Journal article (JOURNALS\77OCTAC.PDF from CD #6 of the MoHPC CD-ROM set) was for the desktop HP-92, which did not have this partial-period feature. It may have been an enhancement for the HP-12C.

And why didn't the Pioneer-series financial calc's (HP-10B, HP-14B, HP-17B/17BII) retain this feature? Maybe a desire for consistency of algorithm and results between the models. Only the 17B/17BII had the built-in calendar functions (present in the HP-12C and HP-92) for calculating the number-of-days length of the partial period. Without the "delta-days" function, handling the partial period is more of a manual exercise, anyway.

PS: The "C" annunciator that Luiz talked about for this problem represents some cleverness in the Voyager platform, which included five models sharing the same display unit. C stands for "compunding" on the financial HP-12C; "complex mode" on the scientific HP-15C; and "carry bit" on the computer-science HP-16C.

-- KS


Edited: 10 Mar 2006, 2:42 a.m.


#9

Hi, Karl;

Quote:
PS: The "C" annunciator that Luiz talked about for this problem represents some cleverness in the Voyager platform, which included five models sharing the same display unit. C stands for "compounding" on the financial HP-12C; "complex mode" on the scientific HP-15C; and "carry bit" on the computer-science HP-16C.
Indeed... From a time when designers, engineers and related 'staff' used to be composed by creative, brainy guys... and somehow users got the chance to dare facing chalenges and delve into their solutions.

I miss that.

Cheers.

Luiz (Brazil)

(PS: I do not mean that todays users do not do that, instead some of them run to their computer already running some `ready to use` SW package and let the solution come already 'packed')

Edited: 11 Mar 2006, 1:57 p.m.

#10

I think you could get FV= -5931.822944 on the 12C by using a PV and FV adjustment of 200=4.44.../.0222... (perpetuity equivalent). First use PMT=0,PV=333.33...+200=533.33... then solve for FV and add the 200 again. n=111.11... and i=2.22... and have the "c" showing.
I know you didn't want to know this<G>

Cheers,
Tony


Possibly Related Threads…
Thread Author Replies Views Last Post
  TVM again ;-) fhub 17 4,757 09-02-2013, 11:03 AM
Last Post: fhub
  TVM WP34s trouble Jim P 4 1,723 06-28-2013, 07:31 AM
Last Post: fhub
  TVM-Solver for the PC fhub 14 3,876 12-26-2012, 03:24 PM
Last Post: fhub
  [WP34s] New TVM-solver version fhub 43 10,575 12-26-2012, 06:12 AM
Last Post: fhub
  [WP34s et al.] Solving the TVM equation for the interest rate Dieter 24 5,792 12-01-2012, 05:53 AM
Last Post: Paul Dale
  12c TVM problems where N is less than 1? James 29 7,296 11-25-2012, 11:50 AM
Last Post: Werner
  [WP34s] new TVM-solver version fhub 29 6,961 05-13-2012, 05:42 AM
Last Post: fhub
  [WP34S] Once Working TVM Now Broken Les Wright 6 2,088 05-07-2012, 02:07 PM
Last Post: Marcus von Cube, Germany
  WP-34s: TVM questions W. Bruce Maguire II 54 11,335 04-18-2012, 09:18 AM
Last Post: fhub
  Re: WP-34s: TVM questions Marcus von Cube, Germany 1 905 04-17-2012, 05:03 PM
Last Post: W. Bruce Maguire II

Forum Jump: