C Math Library Reference

mlfEigs

Find a few eigenvalues and eigenvectors

Minimum number of arguments: two, maximum: user-defined. Terminate the argument list with a NULL.

C Prototype

mxArray *mlfEigs(mxArray **d, mxArray **flag, ...);

C Syntax

#include "matlab.h"

mxArray *A;                     /* Required input argument(s) */
mxArray *n, *B, *k;             /* Optional input argument(s) */
mxArray *sigma, *options;       /* Optional input argument(s) */
mxArray *D = NULL, *flag = NULL;/* Optional output argument(s) */
mxArray *d = NULL, *V = NULL;   /* Return value */

mlfAssign(&d, mlfEigs(NULL,NULL,A,NULL));
mlfAssign(&d, mlfEigs(NULL,NULL,mxCreateString("Afun"),n,NULL));
mlfAssign(&d, mlfEigs(NULL,NULL,A,B,k,sigma,options,NULL));
mlfAssign(&d, mlfEigs(NULL,NULL,mxCreateString("Afun"),n,
                      B,k,sigma,options,NULL));

mlfAssign(&V, mlfEigs(&D,NULL,A,NULL));
mlfAssign(&V, mlfEigs(&D,NULL,mxCreateString("Afun"),n,NULL));
mlfAssign(&V, mlfEigs(&D,NULL,A,B,k,sigma,options,NULL));
mlfAssign(&V, mlfEigs(&D,NULL,mxCreateString("Afun"),n,
                      B,k,sigma,options,NULL));

mlfAssign(&V, mlfEigs(&D,&flag,A,NULL));
mlfAssign(&V, mlfEigs(&D,&flag,mxCreateString("Afun"),n,NULL));
mlfAssign(&V, mlfEigs(&D,&flag,A,B,k,sigma,options,NULL));
mlfAssign(&V, mlfEigs(&D,&flag,mxCreateString("Afun"),n,
                      B,k,sigma,options,NULL));

MATLAB Syntax

d = eigs(A)
d = eigs('Afun',n)
d = eigs(A,B,k,sigma,options)
d = eigs('Afun',n,B,k,sigma,options)
[V,D] = eigs(A,...)
[V,D] = eigs('Afun',n,...)
[V,D,flag] = eigs(A,...)
[V,D,flag] = eigs('Afun',n,...)

See Also

MATLAB eigs     Calling Conventions

mlfEig

mlfEllipj