Solution 10474: Using Memory Functions and Operations on the TI-1795 SV.
What are the memory functions on the TI-1795 SV and how do I use them?
Memory operation keys on the TI-1795 SV are described below:
[M+] adds the displayed number to the memory. This key completes any operation (acts like the [=] key) and then adds the result to memory.
1) Press  [M+] [ON/C]
4 is stored to memory, and 'M' appears in the top left of the display.
2) Press  [x]  [M+]
36 is displayed, and the result of (36 + 4) will be stored to memory.
[M-] subtracts the displayed number from memory. This key completes any operation and then subtracts the result from memory.
1) Press  [x]  [M-] [ON/C]
15 is displayed, and the result of (40 - 15) will be stored to memory.
[MRC] recalls the number in memory to the display when pressed once. To clear the memory, press the [MRC] key twice.
1) Press [MRC]
25 is displayed, the result of (40 - 15).
2) Press [MRC] again.
25 remains in the display, but the 'M' indicator disappears, and the memory is cleared.