# C in lower right corner

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• HP Master

Two separate issues here.

The C indicates the calculator is using compound interest for the odd period. To switch to simple interest, press STO EEX

To switch the radix mark, turn the calculator off, press and hold the . (decimal point) key, press the ON key, then release both keys.

Posted on May 31, 2014

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Posted on Jan 02, 2017

SOURCE: Display a decimal point

Turn the calculator off, then press and hold down the .(decimal key) while you press the on button. Doing so again sets the calculator to use the original digit separators in the display

Posted on Jun 27, 2007

SOURCE: HP 12C calculator

turn the calc off then turn on holding down the decimal.

Posted on May 08, 2008

To change the ´comma´, make sure the calculator is switched to off, press (.) key and maintain, switch the calculator ON. This operation changes dot to comma and vice-versa.

Posted on Aug 11, 2008

SOURCE: hp 12c

hold . when turning on unit

Posted on Aug 15, 2008

Turn the calculator off, then press and hold down the . key while you press on.
Doing so, sets the calculator to the original digit separators in display.

Posted on Jan 22, 2009

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## Related Questions:

### Define algebra:decimal

Decimal is the base-10 notational system for representing real numbers. The expression of a number using the decimal system is called its decimal expansion, examples of which include 1, 13, 2028, 12.1, and 3.14159.

Each of the arabic numerals 0 to 9 is called a decimal digit, and the period placed to the right of the units place in a decimal number is called the decimal point (or, in the case that a comma is instead used for this purpose, the decimal comma).

The decimal is a way of managing numbers that has ten as a starting point, or base. It is sometimes called the base ten or denary numeral system. The word "decimal" is also used instead of the word "period" to point out the dot that is sometimes used separates the positions of the numbers in this system. Almost everyone uses this nowadays and prefers the convenience of it probably because it shows up most often in calculations in nature and has "one" as another starting point for the system. The number one is usually the easiest to work with in calculations.

You may go to the link below for decimal tutorial:

http://www.algebra1help.com/flash/noflash/3.html

Jun 16, 2011 | Computers & Internet

### My decimal changed to a comma, how do i change it back?

Hi,

P12c display from Comma to Point This document describes how to change the display of the decimal point on the HP 12C (HP12C) Calculator from a comma (commas) back to a decimal point.
Instructions
1. Turn off the calculator.
2. Hold down the decimal point.
3. Continue to hold the decimal point key, while turning on the calculator.
The comma should change back to a decimal point.
Explanation The comma is the European equivalent of the decimal point.
This procedure is also applicable to HP12CP (Hewlett-Packard 12c Platinum) and HP12CPA (Hewlett-Packard 12c Platinum 25th Anniversary Edition).

Let me know, if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Feb 04, 2010 | HP 12c Calculator

### I have a comma instead of a . how do I chage

Hello,
Here is help from the calculator manual.

If you wish, you can set the calculator to display a comma for the decimal point and a dot for the three-digit separator. To do so, turn the calculator off, then press and hold down the [ . ] key while you press [ON]. Doing so again sets the calculator to use the original digit separators in the display.

Hope it helps.

Oct 12, 2009 | HP 12c Calculator

### I just replaced the batteries in my HP 12C calculator and when I turned it back on the display looks like this 0,000. How do I get the display to show decimals instead of a comma?

Hello,
Here is what the manual for the HP 12C Platimum financial calculator says on page 17 of 275

Digit Separators
As a number is keyed in, each group of three digits to the left of the decimal point is automatically separated in the display. When the calculator is first turned on after coming from the factory — or after Continuous Memory is reset — the decimal point in displayed numbers is a dot, and the separator between each group of three digits is a comma. If you wish, you can set the calculator to display a comma for the decimal point and a dot for the three-digit separator. To do so,
turn the calculator off, then press and hold down the [ . ] key while you press [ON] Doing so again sets the calculator to use the original digit separators in the display.

Hope it helps.

Oct 06, 2009 | HP 12c Calculator

### There is a comma where the decimal point should be and vise versa.

From HP12c FAQ:
This document describes how to change the display of the decimal point on the HP 12C Calculator from a comma back to a decimal point. Instructions
1. Turn off the calculator.
2. Hold down the decimal point.
3. Continue to hold the decimal point key, while turning on the calculator.
The comma should change back to a decimal point. Explanation The comma is the European equivalent of the decimal point. *
http://h10010.www1.hp.com/wwpc/us/en/sm/WF05a/215348-215348-64232-20036-215349-33525.html

Aug 08, 2009 | HP 12c Calculator

The calculator has two digit-separation marks: The dot [.] and the comma [,].
By default the decimal (radix) mark is the dot, and the comma serves as a 3-digit separator. In European countries (especially France) the radix mark is the comma and the 3-digit separator is the dot.

To switch the marks:
1. Turn calculator OFF
2. Press and HOLD the [.] key while pressing [ON].

Apr 26, 2009 | HP 12c Calculator

### Decimal point is replaced with comma

Check to see if the calculator is in European mode where the comma is sometimes used rather than the period.

Dan

Feb 20, 2009 | HP 33s Calculator

### Hpochange decimal point

The following site solves both issues.
http://www.tvmcalcs.com/calculators/faq/hp10b_faq

Apr 24, 2008 | HP 17bII Calculator

### Display a decimal point

Turn the calculator off, then press and hold down the .(decimal key) while you press the on button. Doing so again sets the calculator to use the original digit separators in the display

May 10, 2007 | HP 12c Calculator

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