(complex double-float)). Because of the extra complexity (haha), I also added some unit tests that use simple C functions to check that FFA does what it claims to do. I have also changed the license to LLGPL (was GPL). And finally, I have migrated the library to Github. Github is proving really user-friendly and reliable, in the long run I plan to put all my libraries there. Thanks to William Halliburton for reminding me that the previous repo was out of date.