Tool Calculator is extremely suitable to use on Multiple or Engineering calculation.
*Tap upper left corner to change different color background.
*Calculating of Functional equation is OK.
*It support common function, including Trigonometric funtion, Logarithmic function, The exponent & Multi-powers of exponent.
*The result could be reviewed as the equation is keyed in.
*It could record and show many equations/ results at the same time.