Operands
3. Operands¶
Klein’s optical design program was created by J. E. Klein. It was reverse engineered from “Hexagon” / “ACCOS-V” and has a similar command syntax and additional features. The user interface is a command line interface (cli) with some gui features. Both KDP-2 (Windows, iFort compiler), and its evolution Koko (Linux, Windows, gFortran compiler) are open sourced and Fortran77-based with some Fortran90.