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Persian tilings and Islamic geometry | Tangente
A highly debatable approach to Persian pentagonal patterns has been repeated so indiscriminately in scientific journals that it has become received wisdom. It is high time to offer another perspective.
Katherine Johnson, NASA mathematician | Tangente
Mathematician Katherine Johnson died at the age of 101. She was one of the scientists who helped derive the equations describing the trajectory of an orbital spaceflight—essential to bringing the first astronauts to land on the Moon back to Earth!
Leonardo da Vinci and mathematics | Tangente
Everything you need to know about Leonardo da Vinci
The emergence of probability theory
In the second half of the 17th century, Blaise Pascal and Pierre de Fermat exchanged letters on the development of a mathematical theory of probability that went beyond the elementary observations one might make about rolling a die. Christian Huygens would take their ideas further.
What if we replayed the match?
Predicting the result of a football match from statistics alone is impossible. Yet methods have been developed to refine such predictions. Goals often seem to come down to chance—but might analysing how the match unfolded provide a more reliable way to assess the teams?
Jumps in number sequences | Tangente
By playing with letters, digits and numbers, we can build sequences whose "stop" and "restart" rules reveal surprising arithmetic phenomena. It would take a clever mind indeed to fathom the jumps between successive terms!
New women members of the Académie des sciences | Tangente
Of the eighteen newly elected members of the Académie des sciences, eight are women, including two in the mathematics section: Nalini Anantharaman and Mireille Bousquet-Mélou.