/**
 * `PI` times 2.
 */
export declare const TWO_PI: number;
/**
 * Converts the degrees to radians.
 * @param degrees - The degrees to convert to radians.
 * @returns The degrees in radians.
 */
export declare const degreesToRadians: (degrees: number) => number;
/**
 * Convertrs the radians to degrees.
 * @param radians - The radians to convert to degrees.
 * @returns The radians as degrees.
 */
export declare const radiansToDegrees: (radians: number) => number;
/**
 * Calculates the sine for a given degree value.
 * @param value - The value in degrees to calculate the sine for.
 * @returns The sine for the given value.
 */
export declare const sinDegrees: (value: number) => number;
/**
 * Calculates the cosine for a given degree value.
 * @param value - The value in degrees to calculate the cosine for.
 * @returns The cosine for the given value.
 */
export declare const cosDegrees: (value: number) => number;
/**
 * Calculates the distance between two vectors.
 * @param x1 - The X component of the first vector.
 * @param y1 - The Y comoinent of the first vector.
 * @param x2 - The X component of the second vector.
 * @param y2 - The Y component of the second vector.
 * @returns The distance between the two vectors.
 */
export declare const distance: (x1: number, y1: number, x2: number, y2: number) => number;
/**
 * Finds the integer square root of a positive number.
 * @param value - The value to calcuate the square root for.
 * @returns The square root for the given value.
 */
export declare const isqrt: (value: number) => number;
/**
 * Checks whether a number is an integer.
 * @param value - The value to check.
 * @returns `true` when the value is an integer, `false` otherwise.
 */
export declare const isInteger: (value: number) => boolean;
/**
 * Ensures a given value is within a given boundary.
 * @param input - The number to clamp.
 * @param floor - The lower bound.
 * @param ceil - The upper bound.
 * @returns The number clamped to the desired range.
 */
export declare const clamp: (input: number, floor: number, ceil: number) => number;
/**
 * Rounds a given number to the next highest value.
 * @param input - The number to round.
 * @param fractionDigits - The amount of digits to retain in the fraction.
 * @returns The rounded number.
 */
export declare const ceilTo: (input: number, fractionDigits?: number) => number;
/**
 * Rounds a given number to the next lowest value.
 * @param input - The number to round.
 * @param fractionDigits - The amount of digits to retain in the fraction.
 * @returns The rounded number.
 */
export declare const floorTo: (input: number, fractionDigits?: number) => number;
/**
 * Rounds a given number to the next closest value.
 * @param input - The number to round.
 * @param fractionDigits - The amount of digits to retain in the fraction.
 * @returns The rounded number.
 */
export declare const roundTo: (input: number, fractionDigits?: number) => number;
/**
 * Cuts off digits of a number.
 * @param input - The number to round.
 * @param fractionDigits - The amount of digits to retain in the fraction.
 * @returns The rounded number.
 */
export declare const truncTo: (input: number, fractionDigits?: number) => number;