petsc-3.12.5 2020-03-29
VecStepBoundInfo
See below
Synopsis
#include "petscvec.h"
PetscErrorCode VecStepBoundInfo(Vec X, Vec DX, Vec XL, Vec XU, PetscReal *boundmin, PetscReal *wolfemin, PetscReal *boundmax)
Collective on Vec
Input Parameters
| X | - vector with no negative entries
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| XL | - lower bounds
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| XU | - upper bounds
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| DX | - step direction, can have negative, positive or zero entries
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Output Parameter
| boundmin | - (may be NULL this it is not computed) maximum value so that XL[i] <= X[i] + boundmax*DX[i] <= XU[i]
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| wolfemin | - (may be NULL this it is not computed)
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| boundmax | - (may be NULL this it is not computed) minimum value so that X[i] + boundmax*DX[i] <= XL[i] or XU[i] <= X[i] + boundmax*DX[i]
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Notes
For complex numbers only compares the real part
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