Nasim Mohammadi Estakhri, Brian Edwards, Nader Engheta, Inverse-designed metastructures that solve equations, Science, Vol. 363, No. 6433 (22 MARCH 2019), pp. 1333-1338 ...

We develop an algorithm for solving a system of diophantine equations with lower and upper bounds on the variables. The algorithm is based on lattice basis reduction. It first finds a short vector ...