petsc-3.14.5 2021-03-03
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# SNESGetUpdateNorm

Gets the last computed norm of the Newton update

### Synopsis

    #include "petscsnes.h"
    PetscErrorCode SNESGetUpdateNorm(SNES snes, PetscReal *ynorm)

Not Collective

### Input Parameter

| snes | - the SNES context

### Output Parameter

| ynorm | - the last computed update norm

### See Also

SNESSetNormSchedule(), SNESComputeFunction(), SNESGetFunctionNorm()

### Level

developer

### Location

src/snes/interface/snes.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages