15C 0,00 ?


My 15C displays 0,00 How do I get back to my cherished 0.00 ?


Buy an other one. <VBG>



Turn the calculator off; then press and hold ON, press and release [.], then release ON.

This question sure does come up a lot. Maybe we should have a link to a dot-or-comma FAQ on the main forum page. :-)

UPDATE: Oops, that should have been: turn the calculator off; then press and hold [.], press and release ON, then release [.].

Apologies for the mix-up!

Edited: 2 Mar 2005, 12:26 p.m. after one or more responses were posted


Mike- Thanks for nothin'
Thomas- Thanks for the response, but that did not seem to work. Any other suggestions ?


Thomas was close - try:

With the calculator off, press and hold ON, press and hold ".", release ON, THEN release "." This is from the manual, and it just worked for me. This toggles between "." and that funky ",".

Another typical humorous response to this question is, "Your 15C is broken, but I'll be glad to buy it from you for a couple bucks!"


AWESOME! Thank you DougT!


I find it easier to remember the following:

With the calculator off, just press and hold the [.] while turning the calculator on.

There is no need (at least on mine) for the more complicated sequence described by the manual.

Cheers, Tom



Possibly Related Threads...
Thread Author Replies Views Last Post
  HP-15C Simulator / Release 3.2.00, Build 5319 Torsten 10 2,086 05-11-2013, 05:19 PM
Last Post: Thomas Klemm
  Original 15C Keyboard Test Works With 15C LE!!! DigiGal 5 1,604 09-26-2011, 07:33 PM
Last Post: M. Joury
  15c finally available from HP for $129.00 US Quan 4 1,185 09-16-2011, 05:49 PM
Last Post: Howard Owen
  9100 B on TAS goes for $5600.00 Donald Williams 10 1,919 10-12-2010, 12:30 AM
Last Post: Keith Midson
  Why sells a Casio FX-603P for USD 1225.00 ? Joerg Woerner 6 1,325 06-28-2008, 11:33 PM
Last Post: From Hong Kong
  50g for $89.99 US until 12/11 4:00 PM PST (Amazon Lighting Deals) Dave Britten 2 774 12-11-2007, 07:29 PM
Last Post: bhtooefr
  $400.00 HP 27s? Joe Edwards 14 2,286 01-31-2006, 11:32 PM
Last Post: Karl Schneider
  41-CX Going for $560.00 Howard Owen 10 1,872 08-19-2005, 03:26 PM
Last Post: Chan Tran
  Look !!! HP41CV - $ 1500.00 !!!!! gileno 12 2,032 06-27-2005, 10:14 AM
Last Post: Ron
  Saturn compatibility HP49G+ #2.00 ROM Christoph Giesselink 13 2,303 05-23-2005, 12:17 AM
Last Post: Ed Look

Forum Jump: