PETSC_MACHINE_EPSILON#

the machine epsilon for the precision of PetscReal

Note#

See https://en.wikipedia.org/wiki/Machine_epsilon

See Also#

PETSC_MAX_REAL, PETSC_MIN_REAL, PETSC_REAL_MIN, PETSC_SQRT_MACHINE_EPSILON, PETSC_SMALL

Level#

beginner

Location#

include/petscmath.h

Examples#

src/mat/tutorials/ex9.c
src/ksp/ksp/tutorials/ex77.c
src/ts/tutorials/ex31.c
src/ksp/ksp/tutorials/ex6.c
src/ts/tutorials/ex51.c
src/ksp/ksp/tutorials/ex76.c
src/mat/tutorials/ex2.c
src/ts/utils/dmplexlandau/tutorials/ex2.c


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Index of all manual pages