Task: Text Categorization
Input (English): A formula named for this man and Bonnet (bahn-ay) states that the surface integral for a namesake curvature over a Riemannian manifold is equal to 2 pi times the Euler characteristic, while an algorithm named for him and Legendre is used to compute the digits of pi. Complex numbers whose real and imaginary parts are both integers are known as this mans integers. A certain error function closely related to the normal distribution is also named after him, and he proved that an n-gon is constructible when n is divisible by a Fermat prime, but he is better known for a law which states that the net electric flux is proportional to the charge enclosed by the surface. For 10 points, identify this German mathematician who is the namesake of a unit of flux density.
Output (English): Science