Oh, I've missed that part. It's hard to fit README's bullet points on a single line, and I've probably removed too many relevant words. I'll update the README

Oh, I've missed that part. It's hard to fit README's bullet points on a single line, and I've probably removed too many relevant words. I'll update the README statement in a second, and already patched the sources to explicitly focus on the [-π/2, π/2] range. Thanks!