/**
 * Returns the ***exact*** number of ***distinct*** real roots in the **closed**
 * interval `[a,b]` of the given polynomial.
 *
 * @param p a polynomial with coefficients given densely as an array of double
 * floating point numbers from highest to lowest power, e.g. `[5,-3,0]`
 * represents the polynomial `5x^2 - 3x`
 * @param a a lower bound
 * @param b an upper bound
 *
 * @example
 * ```typescript
 * const p = [1, 1, -64, 236, -240];
 * numRootsInRange(p,-20,-11);  //=> 0
 * numRootsInRange(p,-11,-9);   //=> 1
 * numRootsInRange(p,-11,3.5);  //=> 3
 * numRootsInRange(p,-11,5);    //=> 4
 * ```
 *
 * @doc
 */
declare function numRootsInRange(p: number[], a: number, b: number): number;
export { numRootsInRange };