BVGetMat — SLEPc 3.25.1 documentation

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# BVGetMat

Returns a `Mat` object of dense type that shares the memory of the `BV` object.

## Synopsis

    #include "slepcbv.h"
    PetscErrorCode BVGetMat(BV bv,Mat *A)

Collective

## Input Parameter

- bv - the basis vectors context

## Output Parameter

- A - the matrix

## Notes

The returned matrix contains only the active columns. If the content of the `Mat` is modified, these changes are also done in the `BV` object. The user must call `BVRestoreMat()` when no longer needed.

This operation implies a call to `BVGetArray()`, which may result in data copies.

## See Also

BV: Basis Vectors, `BVRestoreMat()`, `BVCreateMat()`, `BVGetArray()`

## Level

advanced

## Location

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

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