This mathematician was the first to provide the solution pi squared over si
This mathematician was the first to provide the solution pi squared over six to the Basel problem. DeMoivre's formula is a generalized form of one this man's most famous formulae, and his namesake characteristic is two for any convex polyhedral. His solution to the Königsberg Bridge Problem created the field of graph theory. For ten points, name this Swiss mathematician whose name lends itself to the number e.
This mathematician was the first to provide the solution pi squared over six to the Basel problem.
Leonhard {Euler}