Benjamin Pierce, a Harvard mathematician, after proving Euler’s equation, e ip = –1 ... including calculus, number theory, geometry, and applied math. Pi, or p, is another irrational number.

Perhaps the most common graph theory problem is that of the Travelling Salesman Problem (TSP), which is somewhat like Euler’s original seven bridge problem, but instead asks for a traveller (a ...

No matter how the globe is triangulated, Euler’s formula holds. Euler’s Gem provides a bridge between geometry and topology. In geometry, lengths and angles are fixed. We can move shapes ...