Short description of MxCalc 15c RPN Scientific Calculator SP 1.0: HP 15c emulator software for Windows Mobile Smartphone (No Touch Screen) ~ Looks as good as the HP-15c ~ Performs as good as the HP-15c and more ..A set of scientific & engineering functions, support for complex numbers, matrices & basic arithmetic.Esoteric features include transcendental functions & matrix operations. Free Desktop version!.