** Mathematics** is the study of

The Elements, 1570Image credit: |

** Euclid's ** (

It is considered one of the most successful textbooks ever written: the *Elements* was one of the very first books to go to press, and is second only to the *Elements* was required of all students. Not until the 20th century did it cease to be considered something all educated people had read. It is still (though rarely) used as a basic introduction to geometry today.

Here a ** truncated icosahedron** (left) is compared to the classic

- ...that statistical properties dictated by
Benford's Law are used in auditing of financial accounts as one means of detecting fraud? - ... that according to
Kawasaki's theorem , anorigami crease pattern with onevertex may befolded flat if and only if the sum of every other angle between consecutive creases is 180º? - ... that, in the
Rule 90 cellular automaton , any finite pattern eventually fills the whole array of cells with copies of itself? - ... that, while the
criss-cross algorithm visits all eight corners of theKlee–Minty cube when started at a , it visits only three more corners*worst*corneron average when started at a ?*random*corner - ...that in
senary , all other than 2 and 3 end in 1 or a 5?**prime numbers** - ... if the integer
*n*isprime , then the*n*thPerrin number is divisible by*n*?

The ** Mathematics WikiProject** is the center for mathematics-related editing on Wikipedia. Join the discussion on the project's

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General | Foundations | Number theory | Discrete mathematics |
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