EnterSum
Compatible with iOS4.3 or later
Language is in English or Japanese

<< How to use >>
● Sum of formulas and more ●
For example, when you calculate the formula of "(500×5+200×4)×1.05=",
500×5[Enter]
200×4[Enter]
×1.05[Enter]
Enter it in this app.
The formula on a line is as like the formula with parentheses in this app.
And it can multiply or division the results so far when there is "÷" or "×" on the beginning of the line.
The calculation of split the bill or shopping is so difficult, because both "÷" and "×", they'd be priority in calculator usual.
If you use this app, it become always simple, because you can think the calculation separated by a row.
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