Casio Fx-82AU PLUS II - Variables (A, B, C, D, E, F, M, X, Y); Independent Memory (M)

(MthIO-LineO)
123 456 579
(Continuing) 789
Variables (A, B, C, D, E, F, M, X, Y)
Your calculator has nine preset variables named A, B, C, D, E, F, M, X,
and Y.
You can assign values to variables and use the variables in calculations.
Example:
To assign the result of 3 + 5 to variable A
3 5 (STO) (A) 8
To multiply the contents of variable A by 10
(Continuing) (A) 10 80
To recall the contents of variable A
(Continuing) (A) 8
To clear the contents of variable A
0 (STO) (A) 0
Independent Memory (M)
You can add calculation results to or subtract results from independent
memory.
The "M" indicator appears on the display when there is any value other
than zero stored in independent memory.
Example:
To clear the contents of M
0 (STO) (M) 0
To add the result of 10 × 5 to M
(Continuing) 10 5 50
25