MatLab Alternatives

• Octave (free alternative to Matlab)
• Scilab (free alternative to Matlab)
• Waterloo Maple
• Maxima (free symbolic algebra package)
• TeLa (~ free alternative to Matlab)
• Num-Utils - Command-line math-tools, (free).
• O-Matrix

Plotting Alternatives

• XGraph
• Gnuplot
• PLPlot
• PGPLOT
• Plotmtv and other X window goodies