Audio slideshow: The art of mathematics

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To the untrained eye, these vivid images might appear to be random sets of colourful swirls and circles.

But they are in fact precise visual representations of mathematical theory known as dynamical systems.

Some of the images - created by mathematicians from across the world - have gone on display at the University of Liverpool.

Here, mathematician Lasse Rempe explains how they are made - and considers their artistic merits.

There are no captions with this slideshow. Production by Paul Kerley.