# Data Layout in Diderot

This document describes the data layout conventions used in the Diderot
implementation for images and tensors.

## Images and Nrrd Files

[Nrrd file format](http://teem.sourceforge.net/nrrd/format.html)

## Tensors

### Tensor construction

### Tensor slicing

## Differentiation

The gradiant operator returns a field of higher order than its argument.
For example

````diderot
field#2(3)[2] F;
field#1(3)[2,3] G = ∇ F;
````