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# PetscDTBinomialInt
Compute the binomial coefficient "n choose k" 
## Input Parameters

- ***n -*** a non-negative integer
- ***k -*** an integer between 0 and n, inclusive



## Output Parameter

- ***binomial -*** the binomial coefficient n choose k





## Note
This is limited by integers that can be represented by `PetscInt`.

Use `PetscDTBinomial()` for real number approximations of larger values


## See Also
 `PetscDTFactorial()`, `PetscDTFactorialInt()`, `PetscDTBinomial()`, `PetscDTEnumPerm()`

## Level
beginner

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/include/petscdt.h.html#PetscDTBinomialInt">include/petscdt.h</A>


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