Function cos2x¶

`function` cos2x(const T &, const T &) math ¶

template <typename T>
KFR_INTRINSIC T cos2x(const T& sinx, const T& cosx)

Returns cos(2x) from already computed sin(x) and cos(x).

Template parameters
T	Scalar or vector type.

Parameters
sinx	Value of `sin(x).`
cosx	Value of `cos(x).`

Returns
	`cos(2x).`

Fully qualified name: kfr::cos2x(const T &, const T &)

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