Timur Kireev

Invalid incircle unit test

2

The [incircle unit test](https://github.com/danshapero/predicates/blob/51f25ab0e9791ea21c16816ce80114236a5d68b3/test/incircle.cpp#L55) is invalid. There is a roundoff in `r2` calculation, so `r2` is always equals to `n*n` despite the perturbation of `q`. ``` const double y[] =...