【實用生產應用app】Slope Calc|最夯免費app-綠色工廠好玩App

“Why is the size of Calculator same? ““How order is the priority of Calculator button? ““What type Calculator is designed ,According to this priority? “From those point,I redesign Calculator.Calculator is for Calculation.Not for inputting number.Consequently, the most important button is NOT number buttons. The most important button is 4 arithmetical operation buttons.I design those 4 arithmetical operation button is bigger than 10 number buttons.I put those 4 buttons around number buttons(relative position).And if you incline your iPhone to the direction of top and bottom right and left, you can input 4 arithmetical operation.・Future function additional planEqual sign input by the gesture