# How do you put a negative number on a HP 12c?

Asked By: Xueyan Vonderheide | Last Updated: 14th March, 2020

Category:
personal finance
retirement planning

Q: How do I enter a

**negative number**into one of the TVM keys on the**12C**? A: Well, the proper way to do it is by using the CHS (change sign) key. For example, to enter -1,000 into FV, press 1000 CHS FV. However, if you've got 0 in the x register (the stack), then you could also type 1000 and then -.Furthermore, how do you reset an HP 12c calculator?

**To reset the calculator, follow the procedures below in the order presented.**

- Press ON to turn off the calculator.
- Press and hold [ - ].
- Press and release ON.
- Release [ - ].
- The screen will display “Pr Error”
- The calculator will reset to the default settings, and the memory will be erased.

One may also ask, how do you multiply on HP 12c? Enter the first number of the set into your **HP 12C** calculator and press the “Enter” key. Enter the second number and press the “X” key to **multiply** the two numbers. Continue this step until you **multiply** all numbers in the set.

In this manner, how do you do square root on hp12c?

**Square root** Calculates the **square root** of the number displayed in the X-register (page 83). Power function Raises the number in the Y-register to the power of the number in the X-register. Key in a number x. Press R.

How do I change the decimal point on my HP 12c calculator?

**HP 12C Calculator - Setting a Fixed Decimal Place**

- Press and release the gold PREFIX key (f).
- Press the number key for the desired number of decimal places (0 through 9).