# PetscDTAltVInteriorMatrix
Compute the matrix of the linear transformation induced on a k-form by the interior product with a vector 
## Synopsis
```
#include "petscdt.h" 
PetscErrorCode PetscDTAltVInteriorMatrix(PetscInt N, PetscInt k, const PetscReal *v, PetscReal *intvMat)
```

## Input Parameters

- ***N -*** the dimension of the vector space, N >= 0
- ***k -*** the degree k of the k-forms on which intvMat acts, 0 <= k <= N
- ***v -*** an N dimensional vector



## Output Parameter

- ***intvMat -*** an [(N choose (k-1)) x (N choose k)] matrix, row-major: (intvMat) * w = (w int v)





## See Also
 `PetscDTAltV`, `PetscDTAltVInterior()`, `PetscDTAltVInteriorPattern()`, `PetscDTAltVPullback()`, `PetscDTAltVPullbackMatrix()`

## Level
intermediate

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/dm/dt/interface/dtaltv.c.html#PetscDTAltVInteriorMatrix">src/dm/dt/interface/dtaltv.c</A>


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