From: Matthew Moss <matthew.moss@...>
Date: 2008-04-20T07:34:03+09:00
Subject: Re: Triangle Area (#160)


> 1. Determinant Method

If you decide to implement this technique and are using random
triangles with integer coordinates (as my provided Triangle.random
method uses), make sure to require "mathn", or your determinants are
likely to be wrong.

I couldn't figure out why my unit tests were failing until I read the
Matrix documentation, which indicates "this may be fixed in the
future."