calculator : remember past mathematical values

该计算器可以记住您之前完成的一些数学运算。

hello, world...

this is a super calculator that can remember your past few mathematical values you have done earlier.

there are a lot of calculators in the store but, this is a special calculator, this calculator can remember the past mathematical values you got previous three times,

and this calculator has three display bars and they display your past values,

because of that you no need to remember your past calculated values manually,

this calculator provides you that facility freely, so you can do the calculations with a free mind and this calculation app will doable your calculate speed,

that's why we can call this as a super and simple calculator,

I recommend you to download this calculator and enjoy these facilities,

thank you all,

Shehan,

(Eastern Pear Game Studio, Sri Lanka)