Reference FQL API reference Math Math.cos() Math.cos() Get the cosine of a Number in radians. Signature Math.cos(x: Number) => Number Description Gets the cosine of a Number in radians. Parameters Parameter Type Required Description x Number true Number representing an angle in radians. Return value Type Description Number Cosine of the provided number between -1 and 1, inclusive. Examples Math.cos(2 * Math.PI) 1.0 Math.ceil() Math.cosh()