linalg_matrix_inverse()

void linalg::linalg_matrix_inverse	(	double *	a,
		double *	x,
		int	n
	)

Evaluate the inverse matrix of a real matrix \(a\).

Purpose

Evaluate the inverse matrix of a given real matrix \(a\) and put it to \(x\).

Parameters

a	A real square matrix given as a pointer.
x	A real square matrix into which \(a^{-1}\) is set. Given as a pointer.
n	Size of the matrix \(a\) and \(x\).

Definition at line 125 of file linalg_eigen.cpp.

References get_dmatrix(), and set_dmatrix().

{
   dmatrix A_eigen;
   dmatrix X_eigen;   
   set_dmatrix(n,a,A_eigen);
   Eigen::FullPivLU<dmatrix> lu(A_eigen);
   X_eigen=lu.inverse();
   get_dmatrix(n,x,X_eigen);
}

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