1 #ifndef STAN_MATH_PRIM_MAT_ERR_CHECK_POS_SEMIDEFINITE_HPP 2 #define STAN_MATH_PRIM_MAT_ERR_CHECK_POS_SEMIDEFINITE_HPP 32 template <
typename T_y>
36 const Eigen::Matrix<T_y, Eigen::Dynamic, Eigen::Dynamic>& y) {
40 if (y.rows() == 1 && !(y(0, 0) >= 0.0))
41 domain_error(
function, name,
"is not positive semi-definite.",
"");
46 LDLT<Matrix<double, Dynamic, Dynamic> > cholesky
48 if (cholesky.info() != Eigen::Success
49 || (cholesky.vectorD().array() < 0.0).any())
50 domain_error(
function, name,
"is not positive semi-definite.",
"");
double value_of_rec(const fvar< T > &v)
Return the value of the specified variable.
void check_positive_size(const char *function, const char *name, const char *expr, int size)
Check if size is positive.
void check_pos_semidefinite(const char *function, const char *name, const Eigen::Matrix< T_y, Eigen::Dynamic, Eigen::Dynamic > &y)
Check if the specified matrix is positive definite.
void check_not_nan(const char *function, const char *name, const T_y &y)
Check if y is not NaN.
void check_symmetric(const char *function, const char *name, const Eigen::Matrix< T_y, Eigen::Dynamic, Eigen::Dynamic > &y)
Check if the specified matrix is symmetric.
void domain_error(const char *function, const char *name, const T &y, const char *msg1, const char *msg2)
Throw a domain error with a consistently formatted message.