VecStepBoundInfo#

See below

Synopsis#

#include "petscvec.h"  
PetscErrorCode VecStepBoundInfo(Vec X, Vec DX, Vec XL, Vec XU, PetscReal *boundmin, PetscReal *wolfemin, PetscReal *boundmax)

Collective

Input Parameters#

  • X - vector with no negative entries

  • XL - lower bounds

  • XU - upper bounds

  • DX - step direction, can have negative, positive or zero entries

Output Parameters#

  • boundmin - (may be NULL this it is not computed) maximum value so that XL[i] <= X[i] + boundmax*DX[i] <= XU[i]

  • wolfemin - (may be NULL this it is not computed)

  • boundmax - (may be NULL this it is not computed) minimum value so that X[i] + boundmaxDX[i] <= XL[i] or XU[i] <= X[i] + boundmaxDX[i]

Note#

For complex numbers only compares the real part

See Also#

Vec

Level#

advanced

Location#

src/vec/vec/utils/projection.c

Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages