import { FixedPointNumber } from "./FixedPointNumber";
import { Ray } from "./Ray";
/**
 * Calculates the compounded rate over a given duration.
 * @param rate The rate as FixedPointNumber
 * @param duration The duration in seconds
 * @returns The compounded rate as FixedPointNumber
 */
export declare function calculateCompoundedRate(rate: FixedPointNumber, duration: number): FixedPointNumber;
/**
 * Calculates the compounded interest since the last update timestamp.
 * @param rate The interest rate as a Ray
 * @param lastUpdateTimestamp The timestamp of the last update
 * @returns The compounded interest as a Ray
 */
export declare function calculateCompoundedInterest(rate: Ray, lastUpdateTimestamp: number): FixedPointNumber;