General calculator, special feasures: historical fucntion
Tool Principle
same as conventional scientific calculator,
Usage Steps
1-function add, minus, multipy, divide as transidional calculator
2-the formula will be displayed aboved the current digit.
3- you can input the whole formula and the calculator will automatically calculator with correct pipority smartly
4- click save button, the calculator record will be saved on localstorage (still in you local browser, the data will not be removed at least in recent session)
5- click the result in history, the result will be traced in current digit automactically, it is really usefull when a common number will be used multipy times, git an example: PI=3.1415926 may be used each time for calculation, and you may need to input each time. in this case you can do like below:
a- do calculation 3.1415926 * 1 = 3.1415926
b- click SAVE, so 3.1415926 is in the history board
c- click 3.1415926 in history pannel, the digit will be inputed in current value automactically
d- do other calculation as you need, so you don't need to input PI each time.
Historical Record
No record
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