The small and simple program under MS-DOS for creation and the analysis of trigonometric functions. The program allows to construct on the given expression the diagram on the plane or in a wave mode (tridimentionality emulation). Key press of F4 it is possible to learn directly a derivative, the period, and also the maximum, minimum and null value of function. Except mathematical, also physical parameters are specified: frequency, amplitude, cyclic frequency and initial phase. The program is convenient and easy to use and irreplaceable for who has near at hand no modern computer.
Unpack archive and launch the file from the "trigon" folder.