Our image of the week shows street art featuring the equation of the area of a circle.

Image © Andrew Hale and Patrick Cully.

The image was created by Andrew Hale and Patrick Cully, Research Engineers at Frazer-Nash Consultancy, studying for an EngD in the EPSRC Industrial Doctorate Centre in Systems, University of Bristol.

See here if you'd like to find out more about the area of a circle.

The picture is one of the images that appear in the book *50 visions of mathematics*, which celebrates the 50th anniversary of the Institute of Mathematics and its Applications.

You can see previous images of the week here.