Free math and stats programs

• Graph Theory
  • LAD - Lines And Dots
• Numerical
  • Octave
  • R
  • XPP
  • SciLab
  • ANA
  • Rlab
• Graphical
  • GnuPlot
  • KSEG
  • VTK
• Symbolic
  • Maxima
  • YACAS
  • CoCoA
  • KANT/KASH
  • MuPAD
  • PARI-GP
  • GAP
• Misc.
  • GRASS
  • Khoros (free for students)
  • CVIPtools