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A Regular Heptadecagon is Constructible
Moti Ben-Ari For centuries people learned mathematics by studying Euclid’s Elements. A focus of the Elements is on the construction of geometric figures using a straightedge (a ruler with no markings) and a compass. The Elements gives constructions of regular … Continuer la lecture
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ARTS ET MATHÉMATIQUES: NŒUDS ET ENTRELACS
CHRISTIAN MERCAT ET MICHÈLE ARTIGUE Friezes and tilings frequently accompany the teaching of isometries. The objects that we will consider in this vignette, like the one in Figure 1, are not far from them. However, their understanding involves other mathematics: … Continuer la lecture
Book of the month: Felix Klein – Visions for mathematics, applications and teaching
Renate Tobies is a renowned historian of mathematics and natural sciences. As a profound researcher, she has been studying Felix Klein and his works for decades. As a quintessence of these studies, she has now presented a book on Felix … Continuer la lecture
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Book of the month: Étienne Ghys, La petite histoire des flocons de neige.
Seen up close, a snowflake reveals all sorts of splendors: a marvel of geometry and symmetry. In 1610, the great astronomer Johannes Kepler was astonished and wanted to explain why snowflakes have six branches. Etienne Ghys has in turn become … Continuer la lecture
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From synthetic geometry to dynamic geometry and back: the case of circular inversion
by Giulia Signorini, Michele Tocchet, both from “Liceo Filippo Buonarroti” in Pisa, and Anna Baccaglini-Frank, University of Pisa. In 1871 Felix Klein published two papers, called “On the so-called non-Euclidean geometry”, in which he proposed to call the first type … Continuer la lecture
Site of the Month October: The German Imaginary-Project
The Site of the month October ist The German Imaginary-Project. IMAGINARY offers a platform for open and interactive mathematics with a variety of content that can be used in schools, at home, in museums, at exhibitions or for events and … Continuer la lecture
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Site of the Month September: The Global Math Project
The site of the month September ist The Global Math Project. The Global Math Project is a worldwide movement committed to inspiring educators everywhere to ignite and sustain in their students a love for learning mathematics. The ultimate goal of … Continuer la lecture
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Contribution of the month: Prizes in mathematics, 2020
by Nitsa Movshovitz-Hadar (Technion – Israel Institute of Technology) Did you know? – Over 125,000 new items are added each year, to the international database managed by the American Mathematical Society called MathSciNet®1 A vast majority of these items contain … Continuer la lecture
The Snapshots Project
The link of the month June is The Snapshots Project. The Mathematics News Snapshots for High School (MNS) project aims to provide high school students with a glimpse into the exciting and dynamic world of contemporary mathematics. The project was … Continuer la lecture
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The International Day of Mathematics
The International Day of Mathematics (IDM) is a worldwide celebration. Each year on March 14 all countries will be invited to participate through activities for both students and the general public in schools, museums, libraries and other spaces. The International … Continuer la lecture
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