sum_to_zero_constrain() [7/8]

template<typename T , require_rev_matrix_t< T > * = nullptr, require_not_t< is_rev_vector< T > > * = nullptr>

auto stan::math::sum_to_zero_constrain ( T &&  x )

inline

Return a matrix that sums to zero over both the rows and columns corresponding to the free matrix x.

This is a linear transform, with no Jacobian.

Template Parameters

Mat	type of the matrix

Parameters

x	Free matrix input of dimensionality (N - 1, M - 1).

Returns

Zero-sum matrix of dimensionality (N, M).

Definition at line 85 of file sum_to_zero_constrain.hpp.