3D surface plot Genius is a general purpose calculator program. It is useful both as a simple calculator and as a research or educational tool. The syntax is very intuitive and is designed to mimic how mathematics is usually written. GEL is the name of its extension language, it stands for Genius Extension Language. Interestingly, many of the standard genius functions are written in GEL itself.

An example expression can look like:

30*70 + 67^3.0 + ln(7) * (88.8/100) + |sin(40)| - 3i

Or perhaps to sum the first 70 terms of the harmonic series one would do:

sum n=1 to 70 do 1/n

Similar applications:

BC, Matlab, Maple or Mathematica

Website: