inverse.hpp

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#ifndef STAN_MATH_PRIM_FUN_INVERSE_HPP
#define STAN_MATH_PRIM_FUN_INVERSE_HPP
 
#include <stan/math/prim/meta.hpp>
#include <stan/math/prim/err.hpp>
#include <stan/math/prim/fun/Eigen.hpp>
 
namespace stan {
namespace math {
 
template <typename EigMat,
          require_eigen_vt<std::is_arithmetic, EigMat>* = nullptr>
inline Eigen::Matrix<value_type_t<EigMat>, EigMat::RowsAtCompileTime,
                     EigMat::ColsAtCompileTime>
inverse(const EigMat& m) {
  check_square("inverse", "m", m);
  if (m.size() == 0) {
    return {};
  }
  return m.inverse();
}
 
}  // namespace math
}  // namespace stan
 
#endif