DPlot

DPlot is a general purpose plotting program designed for scientists, engineers, and students. It features multiple scaling types, including linear, logarithmic, and probability scales, as well as several special purpose plots: tripartite grids (shock spectra), grain size distribution plots, polar plots, and contour plots of 3D data.

Manipulation functions include FFT, filtering, smoothing. Data can be input via file, copied from the clipboard, sent to DPlot from another program via dynamic data exchange, or generated by formula.