This complex number package for Java is more detailed than the previous one I posted and it comes with documentation on each of the functions.
The actual Java file for this is here (you can find it on the main page, last updated in 2010): http://www.ee.ucl.ac.uk/~mflanaga/java/Complex.java
Oops, you forgot something.
The words you entered did not match the given text. Please try again.