petsc-3.12.5 2020-03-29

VecMTDot

Computes indefinite vector multiple dot products. That is, it does NOT use the complex conjugate.

#include "petscvec.h"   
PetscErrorCode  VecMTDot(Vec x,PetscInt nv,const Vec y[],PetscScalar val[])

Collective on Vec

	x	- one vector
	nv	- number of vectors
	y	- array of vectors. Note that vectors are pointers

val -array of the dot products

For complex vectors, VecMTDot() computes the indefinite form

     val = (x,y) = y^T x,

where y^T denotes the transpose of y.

Use VecMDot() for the inner product

     val = (x,y) = y^H x,

where y^H denotes the conjugate transpose of y.

intermediate