mex_speigs.c File Reference

Mexfile entry function for speigs. More...

#include <stdio.h>
#include "speigs.h"

Macros
#define	V   plhs[0]
#define	e   plhs[1]
#define	A   prhs[0]
#define	opts   prhs[1]

Functions
static void	print_mtype (spint mtype)
	Print type of matrix. More...
void	mexFunction (int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
	Matlab entry function. More...

Detailed Description

Mexfile entry function for speigs.

Author

Wenzhi Gao, Shanghai University of Finance and Economics

Date

Aug, 24th, 2022

Function Documentation

mexFunction()

void mexFunction	(	int	nlhs,
		mxArray *	plhs[],
		int	nrhs,
		const mxArray *	prhs[]
	)

Matlab entry function.

Parameters

[in]	nlhs	Number of left-hand-side parameters
[out]	plhs	Pointers for left-hand-side parameters
[in]	nrhs	Number of right-hand-side parameters
[out]	prhs	Pointers for left-hand-side parameters

Matab entry for [V, e] = mex_speigs(A, opts); V is a n by r array that gives r eigenvectors and e is all the nonzero eigen-values. opts.gthresh specifies when submatrix permutation is used opts.tol specifies the criterion to decide if an eigen-value is 0 opts.quiet hides logs during factorization

print_mtype()

static void print_mtype ( spint  mtype )

static

Print type of matrix.

Parameters

[in]

mtype

Type of the matrix