The newest test version of HandmadeMath has been put into preview, you can get it here
. This version is still in testing, so if you have any requests or issues, send them to any of the contributors, or feel free to make a pull request.
This release has added in a few new features, including several trigonometric functions, quaternions, and spherical linear interpolation, also known as SLERP.
Special thanks to all of the contributors: Miblo, Valmar33, bvisness, kiljacken, kevinmoran, and peliex.