In a $1643$ letter to Princess Elizabeth of Bohemia, René Descartes described an elegant relationship, now known as the Descartes Circle Theorem, between the radii of four mutually tangent circles, such as those shown below.
Algebra, Geometry, International Mathematical Olympiads, Math contests, Puzzles, Brainteasers, Number Theory, Combinatorics, Logic, Paradox
Εγγραφή σε:
Σχόλια ανάρτησης (Atom)
Δεν υπάρχουν σχόλια:
Δημοσίευση σχολίου