tan

Compute tangent of a given argument

tan(x);

will return the tangent of an argument, expressed in radians. There is no custom return type, the function always returns an double.

tan(0); // 0
tan(PI / 6) == tan(degToRad<float>(30); // 1/sqrt(3) = 0.577
tan(PI / 4) == tan(degToRad<float>(45); // 1
tan(PI / 3) == tan(degToRad<float>(60); // sqrt(3) = 1.732
tan(PI / 2) == tan(degToRad<float>(90); // 0, not infinity!
tan(-PI / 6) == tan(degToRad<float>(-30); // -0.577

Make sure you are passing radians as a argument. You can easily use degToRad function to convert it within the argument itself.