ref: d371ebc9e293f2ae19cc6c1f0502429237a1a5fe
src/utility/Math.h
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#pragma once #include <cstdint> namespace Pinetime { namespace Utility { // returns the arcsin of `arg`. asin(-32767) = -90, asin(32767) = 90 int16_t Asin(int16_t arg); } }