# Basic arithmetic

## imath

This script performs basic arithmetic operations with 2D FITS images (addition,
subtraction, multiplication, division) from the terminal command line.

```{include} files/help_numina-imath.md
```

## imath3d

This script performs basic arithmetic operations with 3D FITS data cubes
(addition, subtraction, multiplication, division) from the terminal command
line.

```{include} files/help_numina-imath3d.md
```