It is 4m.
It is an arbitrary convention.
3m.
Use a Calculator.
Get a calculator and/or a life
it meas memory
it means memory
Mars & Murrie
cup
M- subtracts the value showing from the contents of the memory. M+ adds value showing to the contents of the memory You should be able to clear the memory with MC or some similar button.
example output of c++ calculator
No
It is 4m.
All Clear
It is an arbitrary convention.
The M stand for her middle name
3m.