A pair of numbers is simply two values written in order - (x, y). In geometry it is a point in the plane; in data it is a row of two measurements; in coordinates it is a location on a map. Everything from scatter plots to seating charts to battleship grids is built from ordered pairs.
Generate Pairs of Numbers produces ordered pairs from the ranges you choose for each component, up to 1000 at once. Each pair lists its sum, product and distance from the origin, and a "no repeats" option keeps every point unique. Copy or download as clean (x, y) lines.