petsc-3.3-p7 2013-05-11

PetscRandomGetValueReal

 Generates a purely real random number. Call this after first calling PetscRandomCreate().

Synopsis

#include "petscsys.h" 
PetscErrorCode  PetscRandomGetValueReal(PetscRandom r,PetscReal *val)
Not Collective

Intput Parameter

r -the random number generator context

Output Parameter

val -the value

Notes

Use VecSetRandom() to set the elements of a vector to random numbers.

Example of Usage

      PetscRandomCreate(PETSC_COMM_WORLD,&r);
      PetscRandomGetValueReal(r,&value1);
      PetscRandomGetValueReal(r,&value2);
      PetscRandomGetValueReal(r,&value3);
      PetscRandomDestroy(&r);

See Also

PetscRandomCreate(), PetscRandomDestroy(), VecSetRandom(), PetscRandomGetValue()

Level:intermediate
Location:src/sys/random/interface/random.c
Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages

Examples

src/ksp/ksp/examples/tutorials/ex39.c.html
src/ksp/ksp/examples/tutorials/ex40.c.html