quad_form() [8/8]

template<typename Mat , typename Vec , require_matrix_t< Mat > * = nullptr, require_col_vector_t< Vec > * = nullptr, require_any_var_matrix_t< Mat, Vec > * = nullptr>

var stan::math::quad_form ( const Mat &  A, const Vec &  B, bool  symmetric = false  )

inline

Return the quadratic form \( B^T A B \).

This overload handles arguments where one of Mat or Vec are var_value<T> where T is an Eigen type. The other type can also be a var_value, or it can be a type that inherits from EigenBase

Template Parameters

Mat	type of the matrix
Vec	type of the vector

Parameters

A	square matrix
B	vector
symmetric	indicates whether the output should be made symmetric

Returns

The quadratic form (a scalar).

Exceptions

std::invalid_argument

if A is not square, or if A cannot be multiplied by B

Definition at line 336 of file quad_form.hpp.