nova: TOP Secret Things about Mathematics you didn't Know

Fix a Wobbly Table (with Math)

WDR5:
Redezeit mit Matthias Kreck
Warum Mathematik Musik braucht 

spiegel online: Trachtenberg-Rechensystem: Plus halber Nachbar statt mal sechs

Viele Wege führen zum Ziel - erst recht in der Mathematik. Ein faszinierendes Beispiel dafür ist die kaum bekannte Trachtenberg-Schnellrechenmethode. Wer die zauberhaften Zahlentricks ausprobiert, kommt aus dem Staunen kaum heraus.

Michael Hartl: The Tau Manifesto

Welcome to The Tau Manifesto. This manifesto is dedicated to one of the most important numbers in mathematics, perhaps the most important: the circle constant relating the circumference of a circle to its linear dimension. For millennia, the circle has been considered the most perfect of shapes, and the circle constant captures the geometry of the circle in a single number. Of course, the traditional choice of circle constant is π—but, as mathematician Bob Palais notes in his delightful article “π Is Wrong!”,1 π is wrong. It’s time to set things right. [more...]