:orphan:
# NORM_1_AND_2
computes both the 1 and 2 norm of a vector. The values are stored in two adjacent `PetscReal` memory locations 


## See Also
 [](ch_vectors), `NormType`, `MatNorm()`, `VecNorm()`, `VecNormBegin()`, `VecNormEnd()`, `NORM_1`, `NORM_2`,
`NORM_FROBENIUS`, `NORM_INFINITY`

## Level
beginner

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/include/petscvec.h.html#NORM_1_AND_2">include/petscvec.h</A>


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[Index of all Vec routines](index.md)  
[Table of Contents for all manual pages](/manualpages/index.md)  
[Index of all manual pages](/manualpages/singleindex.md)