# Math Insight

### Image: Area transformation for change of variables in double integrals

The change of variables function $\cvarf$ transforms a small rectangle in the $\cvarfv\cvarsv$ plane to a curvy rectangle in the $xy$ plane, changing the area as well as the shape.

Image file: change_variable_area_transformation.png

Source image file: change_variable_area_transformation.svg
Source image type: Inkscape SVG