Friday, January 23, 2009

HydeSoft Computing DPlot 2.2.2.4

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, contour plots of 3D data, and box-and-whisker plots and dot graphs of one or more 1D samples. Manipulation functions include FFT, filtering, and smoothing.

Recent Changes:

* Corrected two problems with DPlot's FFT routine that have been present from the start: a) The first point in the FFT should be equal to any offset from zero in the input record. This value was off by a factor of 2. b) For an input number of points equal to a power of 2, the output FFT was normalized by dividing by N, when it should have been divided by N-1.


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