/**
 * Returns true if x and y are adjacent, false otherwise.
 *
 * * see [Shewchuk](https://people.eecs.berkeley.edu/~jrs/papers/robustr.pdf)
 * for details
 *
 * @param x a double floating point number
 * @param y another double floating point number
 */
declare function isAdjacent(x: number, y: number): boolean;
export { isAdjacent };