cExpand
A complex expansion function for the TI-89/TI-92+
Released: December 13, 2000
Released by: Bhuvanesh Bhatt (bbhatt1@towson.edu)
Author: Anonymous (Please note that this function is still copyrighted)

Syntax: cexpand(expression,var)

Examples (please note that i=sqrt(-1)):
* expand((x-i)^3,x) => x*(x^2-3)+(1-3*x^2)*i [Not completely expanded]
  cexpand((x-i)^3,x) => i+x^3-3i*x^2-3x
* cexpand((x-5)*(x-5)*(x-(1-i))*(x+(1-i)),x) => 50i+(2i+25)*x^2+x^4-10x^3-20i*x

Unfortunately, no more releases of this function will be made :(