/**
 * Convert a number to string in SI decimal notation.
 * @param num number to format
 * @param digits number of digits after the decimal point
 * @returns formatted string
 * @example 123k or 12.34G
 */
export declare function formatSI(num: number, digits?: number): string;
/**
 * Generate a pseudorandom number between {@link min} min inclusive and {@link max} exclusive.
 * @param min inclusive minimum
 * @param max exclusive maximum
 * @param floor round to int
 * @returns a pseudorandom number
 */
export declare function random(min: number, max: number, floor?: boolean): number;
/**
 * Clamp a number between {@link min} and {@link max} inclusive.
 * @param min inclusive minimum
 * @param val value to clamp
 * @param max inclusive maximum
 * @returns clamped value
 */
export declare function clamp(min: number, val: number, max: number): number;
/**
 * Compute a moving average
 * @param prev previous average
 * @param life average sample count
 * @param cur current value
 * @returns current average
 */
export declare function movingAverage(prev: number | undefined, life: number, cur: number): number;
/**
 * Round a number to the nearest multiple
 * @param value value to round
 * @param multiple multiple to round to
 * @returns rounded value
 */
export declare function round(value: number, multiple: number): number;