HANROT , Guillaume

Elliptic curves are fascinating mathematical objects. In this paper, we present the way they have been represented inside the {\sc Coq} system, and how we have proved that the classical composition law on the points is internal and gives them a group structure. We then describe how having elliptic curves inside a prover makes it possible to...

In order to derive efficient and robust floating-point implementations of a given function f, it is crucial to compute its hardest-to-round points, i.e. the floating-point numbers x such that f(x) is closest to the midpoint of two consecutive floating-point numbers. Depending on the floating-point format one is aiming at, this can be highly...