Do you know the calculator of optimal adder method for an accounting calculation?
(with the calculation method change function)
Try it on iPhone and iPad you always carry around.

【Feature】
- This can switch an "adder calculator" and "ordinary calculator"
- The design of a button can be chosen
- The regulating function of a background color and brightness
- Select your favorite sound from sound effects
- Input log editing + recalculation function
- Voice reading of the input log (for iOS7)
- Copy the log and total (paste to memo etc)
- Display switching function digit after the decimal point (FULL · 0 ~ 6 digits)
- The (up-truncation Ri rounded-off) Rounding switching function
- 14 Number of significant digits
- Always display "GT:Grand Total"
- Always display "MR:Memory"
- BS:BackSpace function

【How to use an adder calculator】
”(10×10)+(5×5)-(6×5)=95” → 10 [×] 10 [+=] 5 [×] 5 [+=] 6 [×] 5 [-] [GT]
（10×10）Add（5×5）Add（6×5）Pull

【How to use an ordinary calculator】
”(10×10)+(5×5)-(6×5)=95” → 10 [×] 10 [=][M+] 5 [×] 5 [=][M+] 6 [×] 5 [=] [M-][MR]
Added to the Grand Total by "="

The continuous input will be "10×10+5×5-6×5=2595"