Arithmetic
Explore mathematics articles on the theme of arithmetic.

Why not base 12? The advantages of the duodecimal system
If you talk to people about the history of arithmetic, whatever your specific subject, you can expect someone to ask this question at the end: why is our numeral system base 10 when base 12 would be so much more practical?

Applying the Chinese remainder theorem to RSA cryptography
The Chinese remainder theorem finds, among other things, applications in cryptography

Logjam flaw in the HTTPS protocol | Tangente
A Franco-American team of researchers has just cheated… but for a good cause! Their goal? To verify the cryptographic mechanisms used to secure communications on the Internet.

The luthiers' secret code decrypted | Tangente
The luthiers of the Parisian house Gand & Bernardel, a famous dynasty of violin makers from 1795 to the Second World War, had a code that let them work on their slips with complete discretion.

Numbers in a triangle: math puzzles to explore
The arrangement of numbers in Pascal's triangle obviously lends itself to play, and many mathematical recreations refer to it.

Goal average and rankings: sporting fairness | Tangente
Breaking ties, showcasing the spectacle of sport: that is the role of the points system, often modified over time. But does this move toward greater fairness? And how can cheating be avoided?
