Calculated Industries 4095-B Pocket Reference Guide - Manual (Page 21)

MEMORY OPERATION
Whenever the
 key is pressed, the
displayed value will be added to the memory.
Other memory functions:
FUNCTION KEYSTROKES
Add to memory

Subtract from memory
 
Recall total in memory
 
Display/clear memory
 
Clear memory
 ;
Memory is semi-permanent, clearing only
when you:
1) turn off the calculator;
2) press
 ; ;
3) press
 ;; ;
4) press
  (Clear All).
When memory is recalled (
;;  ), consecutive
presses of
 will display the calculated average
and total count of the accumulated values.
Using M+
KEYSTROKES DISPLAY
    M+
355. M
    M+
255. M
     (M-)
M- 745. M
 
TTL – 135. M

AVG – 45. M

CNT 3. M
; ;
M+ – 135.