petsc-3.3-p7 2013-05-11
PetscOptionsReal
Gets the PetscReal value for a particular option in the database.
Synopsis
#include "petscsys.h"
PetscErrorCode PetscOptionsReal(const char opt[],const char text[],const char man[],PetscReal defaultv,PetscReal *value,PetscBool *set)
Logically Collective on the communicator passed in PetscOptionsBegin()
Input Parameters
| opt | - option name
|
| text | - short string that describes the option
|
| man | - manual page with additional information on option
|
| defaultv | - the default (current) value
|
Output Parameter
Notes: Must be between a PetscOptionsBegin() and a PetscOptionsEnd()
See Also
PetscOptionsGetReal(), PetscOptionsHasName(), PetscOptionsGetString(), PetscOptionsGetInt(),
PetscOptionsGetIntArray(), PetscOptionsGetRealArray(), PetscOptionsBool()
PetscOptionsInt(), PetscOptionsString(), PetscOptionsReal(), PetscOptionsBool(),
PetscOptionsName(), PetscOptionsBegin(), PetscOptionsEnd(), PetscOptionsHead(),
PetscOptionsStringArray(),PetscOptionsRealArray(), PetscOptionsScalar(),
PetscOptionsBoolGroupBegin(), PetscOptionsBoolGroup(), PetscOptionsBoolGroupEnd(),
PetscOptionsList(), PetscOptionsEList()
Level:beginner
Location:src/sys/objects/aoptions.c
Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages
Examples
src/snes/examples/tutorials/ex12.c.html
src/snes/examples/tutorials/ex15.c.html
src/snes/examples/tutorials/ex46.c.html
src/snes/examples/tutorials/ex48.c.html
src/snes/examples/tutorials/ex52.c.html
src/snes/examples/tutorials/ex61.c.html
src/snes/examples/tutorials/ex62.c.html
src/snes/examples/tutorials/ex63.c.html
src/snes/examples/tutorials/ex633D_DB.c.html
src/snes/examples/tutorials/ex65.c.html
src/ts/examples/tutorials/ex8.c.html