/**
 * Numerically integrates the given function using the Gaussian Quadrature
 * method.
 *
 * See https://en.wikipedia.org/wiki/Gaussian_quadrature
 * See http://pomax.github.io/bezierinfo/#arclength
 * @param f The univariate function to be integrated
 * @param interval The integration interval
 * @param order Can be 2, 4, 8, or 16. Higher values give more accurate results
 * but is slower - defaults to 16.
 */
declare function gaussQuadrature(f: (x: number) => number, interval: number[], order?: 2 | 4 | 8 | 16 | 64): number;
export { gaussQuadrature };