This is some code to compute quadratic exponential sums and the Riemann zeta function. It is probably not very user friendly right now for anyone who didn't write it.

See

• http://arxiv.org/abs/1607.00709
• https://people.math.osu.edu/hiary.1/fastmethods.html
• https://people.maths.bris.ac.uk/~jb12407/data/zeta/