Gnuplot C/C++ interface (the real extension of gnuplot_i)
Cool-down time calculator for multi-layers pipe
LogWatch mail reports parser to analyze tendencies of variables.
Gplot provides a convenient front-end for gnuplot
Web interface for visualizing CSV data from CollectD monitoring system
Python script that produces a tight pdf from gnuplot with psfrag text.
Three C++ progress bar classes.
LaTeX Makefile Generator
Inkscape extension to add and edit GNUplot graphs
linear regression along with plotting
Backpropagation Network Simulator in C++