With Cauchy, this mathematician names a class of differential equations with variable coefficients.
With Cauchy, this mathematician names a class of differential equations with variable coefficients. He generalized Fermat's Little Theorem to composite moduli using his namesake totient phi function, phi, and his characteristic for a polyhedron is the number of vertices plus the number of faces minus the number of edges. His path traverses each edge of a graph exactly once, and he demonstrated that there were no solutions to the Konigsberg bridge problem. For 10 points, identify this namesake of the constant that is the base of natural logarithms, e.
With Cauchy, this mathematician names a class of differential equations with variable coefficients.
Leonhard {Euler}