PETSc version 3.17.4
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# MatLMVMClearJ0

Removes all definitions of J0 and reverts to an identity matrix (scale = 1.0).

### Synopsis

    #include "petscksp.h"
    PetscErrorCode MatLMVMClearJ0(Mat B)

### Input Parameters

| B | - An LMVM-type matrix

### See Also

MatLMVMSetJ0()

### Level

advanced

### Location

src/ksp/ksp/utils/lmvm/lmvmutils.c
Index of all KSP routines
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Index of all manual pages