PETSc version 3.17.4
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# SNES_DIVERGED_FNORM_NAN

the 2-norm of the current function evaluation is not-a-number (NaN), this is usually caused by a division of 0 by 0.

### See Also

SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances()

### Level

beginner

### Location

src/snes/../../include/petscsnes.h
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages