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# BVSetVecType

Set the vector type to be used when creating vectors via `BVCreateVec()`.

## Synopsis

    #include "slepcbv.h"
    PetscErrorCode BVSetVecType(BV bv,VecType vtype)

Collective

## Input Parameters

- bv - the basis vectors context

- vtype - the vector type

## Note

This is not needed if the `BV` object is set up with `BVSetSizesFromVec()`, but may be required in the case of `BVSetSizes()` if one wants to work with non-standard vectors.

## See Also

BV: Basis Vectors, `BVGetVecType()`, `BVSetSizesFromVec()`, `BVSetSizes()`

## Level

advanced

## Location

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

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