MatAYPX

Computes Y = a*Y + X.

Synopsis

#include "petscmat.h"  
PetscErrorCode MatAYPX(Mat Y, PetscScalar a, Mat X, MatStructure str)

Logically Collective

Input Parameters

• a - the PetscScalar multiplier

• Y - the first matrix

• X - the second matrix

• str - either SAME_NONZERO_PATTERN, DIFFERENT_NONZERO_PATTERN, UNKNOWN_NONZERO_PATTERN, or SUBSET_NONZERO_PATTERN (nonzeros of X is a subset of Y’s)

See Also

Matrices, Mat, MatAXPY()

Level

intermediate

Location

src/mat/utils/axpy.c

Examples

src/ksp/ksp/tutorials/ex76.c
src/ksp/ksp/tutorials/ex77.c
src/ksp/ksp/tutorials/ex77f.F90

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