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FX 65 Training guide
Memory
Memory Calculations
The memory function is convenient for calculating cumulative totals.
[M+] Adds displayed value to memory.
[MR] Recalls the value stored in memory.
[SHIFT] [MC] Clears memory.
[SHIFT] [M-] Subtracts the displayed value from memory.
[SHIFT] [X-M] Swaps the displayed value with the value currently in memory.
Constant Memory Calculations
A pair of constant memories let you store operators and values. Once stored, a value
and operator can be recalled with the touch of a key as necessary.
• Arithmetic operators (+, -, x, ÷), power, and root operations can be stored in
constant memory.
• An error will occur if you try to store only an operator or only a value.
• You can store data in constant memory immediately after pressing the [AC] key.
• Storing data to a memory that already contains data replaces the old data with
the new.
[SHIFT] [SET1] Stores data into constant memory F1.
[SHIFT] [SET2] Stores data into constant memory F2.
[F1] Recalls data from constant memory F1.
[F2] Recalls data from constant memory F2.
[AC] [SHIFT] [SET1] Clears constant memory F1.
[AC] [SHIFT] [SET2] Clears constant memory F2.
[AC] [F1] Displays the contents of constant memory F1.
[AC] [F2] Displays the contents of constant memory F2.
Examples:
To store x 123 in constant memory F1: [AC] [x] [123] [SHIFT] [SET1]
To use constant memory (multiply by 123): [AC] [2] [F1]
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References the Casio FX-65 User’s Guide Casio FX-65 Fraction calculator