acos() [8/9]

template<typename VarMat , require_var_matrix_t< VarMat > * = nullptr>

auto stan::math::acos ( const VarMat &  x )

inline

Return the principal value of the arc cosine of a variable, in radians (cmath).

Parameters

x	a var_value with inner Eigen type

Returns

Arc cosine of variable, in radians.

Definition at line 69 of file acos.hpp.