trace_gen_quad_form() [3/3]

template<typename Td , typename Ta , typename Tb , typename = require_any_var_t<value_type_t<Td>, value_type_t<Ta>, value_type_t<Tb>>, typename = require_all_eigen_t<Td, Ta, Tb>>

var stan::math::trace_gen_quad_form ( const Td &  D, const Ta &  A, const Tb &  B  )

inline

Return the trace of D times the quadratic form of B and A.

That is, ‘trace_gen_quad_form(D, A, B) = trace(D * B’ * A * B).`

This overload requires one of D, A, or B to be a var_value<T> where T inherits from EigenBase

Template Parameters

TD	type of first matrix argument
TA	type of second matrix argument
TB	type of third matrix argument

Parameters

D	multiplier
A	outside term in quadratic form
B	inner term in quadratic form

Returns

trace(D * B' * A * B)

Exceptions

std::domain_error	if A or D is not square
std::domain_error	if A cannot be multiplied by B or B cannot be multiplied by D.

Definition at line 92 of file trace_gen_quad_form.hpp.