A Reverse Polish Notation utility program for science and engineering students. It temporarily converts the computers numeric key pad into a RPN calculator by allowing direct use of key pad digits, [+,-,*,/] keys, [Enter] and [Up/Down Arrow & Page] keys. Trigonometric and logarithmic functions areprovided by mouse clicking on dialog box buttons. Linkage to other applications is available through use of the Windows clipboard. Optional features include window stay on top and window shrinkage. This zip package contains the complete 32-bit utility program for Windows 95.