Numericon

Marianne Freiberger and Rachel Thomas are the Editors of Plus Magazine (plus.maths.org), a free online magazine opening a door to the world of maths for the general public. Before joining Plus in 2005, Marianne did a PhD in pure mathematics, followed by three years as a postdoc at Queen Mary, University of London. She has also been Editor-in-Chief of the mathscareers website. Rachel worked as a maths consultant for business, government and industry, after completing her Masters in pure mathematics at the University of Western Australia. She has edited the Gazette of the Australian Maths Society and designed mathematical walking tours with Marcus du Sautoy for Maths in the City. Rachel and Marianne were also editors of the popular maths book 50: Visions of Mathematics (OUP, 2014).

Introduction. How nothing gave us something. One is all you need. Butterflies, murder and a proof that didn't fit in the margin. From irrationality to the divine. Of prime importance. Naturally! It takes three. In another dimension. Trouble with tiles. Bees do it, we do it... Easy as pi? Are you feeling lucky? A matter of scale. About time. It is a truth universally acknowledged... Mostly harmless. Would you like fries with that? An adventure through time and space. You can be (almost) certain of this. The height of perfection. Too big to write but not too big for Graham. Are we there yet? Marks the spot. Imaginary is everything. QED. Further reading. Index.