On this calculator you will be able to benefit from all the functions of a scientific calculator and RPN with the new iOS calculator. Thanks to the RPN mode you will be able to calculate sums at great speed which greatly reduces the typing. With a simple and uncluttered interface design, this calculaor includes 54 mathematical functions such as : • basic functions like natural logarythms, square roots and factorials • trigonometry (simple and hyperbolic) • it convertes polar and rectangular coordinates, decimal hours, hours, minutes and seconds • it can calculate degrees and radians And much more This calculator uses the very efficient and much talked about RPN system used by engineers and scientists, now on iOS.