# 7.6.19.1.17. Tensor_Sum

Syntax

  User Expression [{of} SpeciesName | {in} MaterialPhaseName | {ls} {a | b | c}] = Tensor_Sum [User_Tag = user_tag | Contributions = contributions | Equations = Equations…]

Scope

  Aria Material

Summary

  Tensor sum

Description

  Summation of a list of tensor and/or scalar contributions. Scalar sums are applied to all tensor components

Parameter | Value | Default
--- | --- | ---
{of} | {of | species | subindex} | –
SpeciesName | string | –
{in} | {in | material_phase} | –
MaterialPhaseName | string | –
{ls} | {levelset_phase | ls} | –
user_tag | “string” | –
contributions | “string” | –
Equations | string… | –