import { Maybe } from 'yummies/types';

/**
 * Converts degrees to radians.
 *
 * @example
 * ```ts
 * degToRad(180); // Math.PI
 * ```
 */
declare function degToRad(deg: number): number;

/**
 * Returns what percentage `value` is of `from`.
 * @example
 * ```ts
 * percentFrom(500, 2000) // 25
 * percentFrom(1000, 2000) // 50
 * ```
 */
declare const percentFrom: (value: Maybe<number>, from: Maybe<number>) => number;

/**
 * Converts radians to degrees.
 *
 * @example
 * ```ts
 * radToDeg(Math.PI); // 180
 * ```
 */
declare function radToDeg(rad: number): number;

export { degToRad, percentFrom, radToDeg };