export declare const pv: (r: number, n: number) => number;
export declare const fv: (r: number, n: number) => number;
export declare const pvMulti: (r: number, n: number) => number;
export declare const irr: (p: number, n: number) => number;
export declare const perpetuity: (r: number, y?: number) => number;
export declare const fvUneven: (cf: [number, number][], r: number, s?: number) => number;
export declare const pvUneven: (cf: [number, number][], r: number, s?: number) => number;
export declare const cfUneven: (cf: [number, number][], r: number, f: (x: number, y: number) => number, s?: number) => number;