PETSC_SMALL#

an arbitrary “small” number which depends on the precision of PetscReal used in some PETSc examples and in PetscApproximateLTE() and PetscApproximateGTE() to determine if a computation was successful.

Note#

See PETSC_MACHINE_EPSILON

See Also#

PetscApproximateLTE(), PetscApproximateGTE(), PETSC_MAX_REAL, PETSC_MIN_REAL, PETSC_REAL_MIN, PETSC_MACHINE_EPSILON, PETSC_SQRT_MACHINE_EPSILON

Level#

beginner

Location#

include/petscmath.h


Index of all Sys routines
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Index of all manual pages