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# TaoADMMSetRegularizerCoefficient
Set the regularization coefficient lambda for L1 norm regularization case 
## Synopsis
```
#include "petsctao.h" 
PetscErrorCode TaoADMMSetRegularizerCoefficient(Tao tao, PetscReal lambda)
```
Collective


## Input Parameters

- ***tao -*** the `Tao` solver context
- ***lambda -*** L1-norm regularizer coefficient





## See Also
 `TaoADMMSetMisfitConstraintJacobian()`, `TaoADMMSetRegularizerConstraintJacobian()`, `TAOADMM`

## Level
advanced

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/constrained/impls/admm/admm.c.html#TaoADMMSetRegularizerCoefficient">src/tao/constrained/impls/admm/admm.c</A>

## Examples
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/constrained/tutorials/tomographyADMM.c.html">src/tao/constrained/tutorials/tomographyADMM.c</A><BR>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/tao/constrained/impls/admm/admm.c)


[Index of all Tao routines](index.md)  
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[Index of all manual pages](/manualpages/singleindex.md)  
