Standard Calculator APP
a single screen calculator with no advanced mathematical functions or trigonometry, just for every day use.
* has the basic add, subtract, multiple, divide functions
* immediate action function for working with percentages
* toggle +/- sign
* memory functions plus, minus ,recall, clear
* continuous calculations etc, just press the function button to keep going
memory values always displayed so you can see what the value is
display of previous value when starting directly on the next calculation