A classic calculator that suitable for everyone.
* 16 Digits Calculator
* 99% function same as the original classic calculator
* 100% Guaranteed no error calculation!
* Special function:
1) M＋ = Add the current value to (or from) the stored value in the memory register.
2) M- = subtract the current value to (or from) the stored value in the memory register.
3) MR = Recall the current memory register value.
4) MC = Clear the memory register (set to zero).
5) C/AC = Clear the screen ( set to zero), press it one more time to clear all.
quad-core 1.0 GHz processor + 2GB RAM