# Calculation History And Replay; Using Memory Functions - Casio fx-82EX User Manual

• One of the prime factors of the value is 1,018,081 or greater.
• Two or more of the prime factors of the value have more than three digits.
The part that cannot be factored will be enclosed in parentheses on the
display.

## Calculation History and Replay

Calculation History
An  and/or  at the top of the display indicates that there is more
calculation history content above and/or below. You can scroll through
calculation history contents using  and .
2 + 2 = 4
3 + 3 = 6
Note: Calculation history data is all cleared whenever you press , when
you change to a different calculation mode, when you change the Input/
Output setting, or whenever you perform a RESET operation ("Initialize All"
or "Setup Data").
Replay
While a calculation result is on the display, you can press  or  to edit
the expression you used for the previous calculation.
4 × 3 + 2 = 14
4 × 3 − 7 = 5

### Using Memory Functions

The last calculation result obtained is stored in Ans (answer) memory.
To divide the result of 14 × 13 by 7
123 + 456 = 579
789 − 579 = 210
Variables (A, B, C, D, E, F, M, x, y)
You can assign values to variables and use the variables in calculations.
To assign the result of 3 + 5 to variable A
To multiply the contents of variable A by 10
To recall the contents of variable A
(Continuing) (RECALL)*
To clear the contents of variable A
(Continuing) 7
1413
(Continuing) 7
(Continuing) 789
(Continuing) (A)10*
(A)
11
(Scrolls back.) 
432
123456
35(A)
2
22
33
14
182
579
210
80
1
4
6
4
5
8
8