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## Homework Statement

Trying to figure out the following integral was done....

int

_{v}(u

_{i}(partial)d(sigma

_{ij})/(partial)dx

_{j})dv

## Homework Equations

Divergence theorem int

_{v}(del.F)dv = int

_{s}(F.n)ds

## The Attempt at a Solution

I have the correct ans from one of my lectures,

int

_{s}(u

_{i}n

_{j}sigma

_{ij})ds - int

_{v}((partial)d(u

_{i})/(partial)dx

_{j})sigma

_{ij})dv

I think its done by integration by parts but cant seem to get it to work out.

Also how do people get math script in here??