**Tensor Manipulation**

The diagrammatic notation is very useful in manipulating tensor algebra. It usually involves a few simple "identities" of tensor manipulations.

For example, where *n* is the number of dimensions, is a common "identity".

Read more about this topic: Penrose Graphical Notation

### Famous quotes containing the word manipulation:

“The principle that human nature, in its psychological aspects, is nothing more than a product of history and given social relations removes all barriers to coercion and *manipulation* by the powerful.”

—Noam Chomsky (b. 1928)