"CTRL + Z: Linear Transformations and Their Inverses"
featuring Laura Fredrickson

On March 24th, 2013, Laura Fredrickson led a Math Circle exploration of linear transformations, focusing on how we can use them to stretch, shrink, and rotate images. We explored how to combine several linear transformations to make new transformations, and also how to undo transformations using their inverses. Students used these inverses to "save cats" whose images had been streched or squashed by different transformations.

Printable version of the flyer

Videos from the talk: Laura Fredrickson, March 24, 2013,

Here are some pictures from the talk. Right click and select 'view image' to see it larger.