Graphical representation of complex functions

Question

Which software (preferably: free/open source) can one use to graphically represent a complex function? I know that real functions can be easily represented with Octave or R; what can you recommend for complex functions?

Thanks in advance, Lucian

Answer 1

You can try sage at http://www.sagemath.org/

Edit by Rahul: SAGE has a complex_plot function which visualizes complex functions using domain colouring. An example can be seen in this blog post about SAGE 3.4.1.

Answer 2

You may find this link helpful. You might also enjoy this book's approach to complex variable.