#include "slepcsys.h" PetscErrorCode MatNormEstimate(Mat A,Vec vrn,Vec w,PetscReal *nrm)Collective on A
A | - the matrix | |
vrn | - random vector with normally distributed entries (can be NULL) | |
w | - workspace vector (can be NULL) |
nrm | - the norm estimate |
The input vector vrn must have unit 2-norm. If vrn is NULL, then it is created internally and filled with VecSetRandomNormal().
Location: src/sys/mat/matutil.c
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