slepc-main 2024-12-17
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BVSetRandomNormal

Set the columns of a BV to random numbers with a normal distribution.

Synopsis

#include "slepcbv.h" 
PetscErrorCode BVSetRandomNormal(BV bv)
Logically Collective

Input Parameter

bv  - basis vectors

Notes

All active columns (except the leading ones) are modified.

Other functions such as BVSetRandom(), BVSetRandomColumn(), and BVSetRandomCond() produce random numbers with a uniform distribution. This function returns values that fit a normal distribution (Gaussian).

Developer Notes

The current implementation obtains each of the columns by applying the Box-Muller transform on two random vectors with uniformly distributed entries.

See Also

BVSetRandomContext(), BVSetRandom(), BVSetRandomColumn(), BVSetRandomCond(), BVSetActiveColumns()

Level

advanced

Location

src/sys/classes/bv/interface/bvops.c

Index of all BV routines
Table of Contents for all manual pages
Index of all manual pages