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Today's Theorem   on Thursday 2 September, 2010

Yesterday's Theorem     Tomorrow's Theorem     The Whole Jolly Lot

 

Welcome to a gallery whose exhibits are the crowning achievements of mathematics: her theorems.

The first 20 terms of the Fibonacci sequence

 

Each day offers a different theorem (or lemma, law, formula or identity), each one worthy of adorning the walls of a mathematical Alte Pinakothek, Guggenheim, Louvre, Nail Factory, Tate, Uffizi or Zach Feuer.

Each theorem has been presented so as to be appreciated by as wide an audience as possible. If you can have a go at a Sudoku puzzle (certainly a mathematical creature even though not an arithmetical one) then you can have a go at today's theorem.

By 'have a go' I mean admire it; turn it over in your mind; try to follow the example, if one is given; if you are studying it on-line, follow the web link, which will provide a pictorial interpretation, a proof or even a clever animation.

Click on the 'further reading' link. It will usually take you to the amazon.co.uk page for the book. This is a convenient way to provide full bibliographical details of the book (and often, a view of the contents page and index); it is not a recommendation that you buy the book (but, if you do, this website earns a small referral fee!)

When viewing a theorem on-line, the Theorem List Icon button, top-left, will take you to the complete theorem list. Each theorem is as self-contained as possible; the Glossary icon button, top-right, links to a Glossary page where there is a brief explanation of some parts of mathematical language; the Back arrow icon arrow will take you to a related but usually less sophisticated theorem which may shed light on today's; the Forward arrow icon arrow may point to a theorem which leads on from today's or takes you deeper into its subject. For some theorems are deeper than others; some use more technical language than others; some are just harder to understand than others.


Some days are harder than others. I hope even the most difficult days offer something of wonder.

Recent Acquisitions

Sendov's Conjecture

Theorem no. 178

and
coming soon...

the Descartes Circle Theorem
Fibonacci image

Mathematician of the Day from The MacTutor History of Mathematics Archive
Fibonacci image

News
Royal Society Prize for Science Books 2010 shortlist announced, including Why Does E=mc2? by Brian Cox and Jeff Forshaw
Older
Fibonacci image

Events

Weekend School:
Paul Erdős and 'The Book'
18,19 September '10, Oxford University

More events
Fibonacci image

Featured Book

Featured Book
More books
Fibonacci image

The 2010 Calendar!
2010 Calendar "12 Theorems by Women Mathematicians"


Theorem of the Day is maintained by Robin Whitty. Comments or suggestions are welcomed by me.
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