/**
 * Returns an error-free polynomial in 1 variable whose roots are the parameter
 * values of the self-intersection points of the given cubic bezier curve.
 *
 * The returned polynomial coefficients are given densely as an array of
 * [Shewchuk](https://people.eecs.berkeley.edu/~jrs/papers/robustr.pdf) floating point expansions from highest to lowest power,
 * e.g. `[[5],[-3],[0]]` represents the polynomial `5x^2 - 3x`.
 *
 * * the returned polynomial coefficients are exact (i.e. error-free)
 * * adapted from [Indrek Mandre](http://www.mare.ee/indrek/misc/2d.pdf)
 *
 * @param ps a cubic bezier curve.
 *
 * @internal
 */
declare function getCoeffsBez3Exact(ps: number[][]): number[][];
export { getCoeffsBez3Exact };