Receive notice of every new vignette.
List of Vignettes
Sites of the Month
Books of the Month
Search
Meta
Author Archives: admin
Banach’s microscope to find a fixed point
Originating author is Christiane Rousseau. In this vignette, we will show how we start from a small game to discover one of the most powerful theorems of mathematics, namely the Banach fixed point theorem. This theorem has fantastic applications inside … Continue reading
A tale of two triangles: Heron triangles and elliptic curves
Originating author is William Mc Callum. If two triangles have the same area and the same perimeter, are they necessarily congruent? It turns out that the answer is no. For example, the triangle with sides and has the same area … Continue reading