Using Independent Memory - Casio fx-5800P User Manual

A Inserting Ans into a Calculation Manually
You can insert Ans into a calculation at the current cursor location by pressing
Example 1: To use the result of 123 + 456 in another calculation as shown below
123 + 456 = 579
Example 2: To determine the square root of 3

Using Independent Memory

Independent memory (M) is used mainly for calculating cumulative totals.
A Adding to Independent Memory
While a value you input or the result of a calculation is on the display, press
independent memory (M).
Example: To add the result of 105 ÷ 3 to independent memory (M)
A Subtracting from Independent Memory
While a value you input or the result of a calculation is on the display, press
subtract it from independent memory (M).
789 – 579 = 210
123+456
789- - (Ans)
2 2
+ 4 and then add 5 to the result
3x+4x
- (Ans) )+5
105/3
E-33
- (Ans).
to add it to
(M–) to