EinsteinSum edit page

tensor multiplication according to Einstein summation convention

Description

This function computes a tensor product according to Einstein summation convention

Syntax

% sumation against dimension 1 and 2
C = EinsteinSum(E,[1 -1 2 -2],v,-1,v,-2)
eps = EinsteinSum(C,[-1 1 -2 2],sigma,[-1 -2])

Input

T1,T2 tensor
dimT1 vector of indices giving the summation order in tensor 1
dimT2 vector of indices giving the summation order in tensor 2

Output

T tensor

See also