This is a very powerful complex number program. It has many features. [br]adds, subtracts, multiplies, divides, shows pictures of the operations, and much more..[br]please visit www.livingalgebra.com and www.livingcalculus.com for much more[br]by Tom Owsiak, Atlanta, GA, 5/14/2013[br]http://www.youtube.com/watch?v=5jMrM6vlw6w [br]subscribe to youtube.com/mathlessonsforfree