export type SinCosFn = (u: number, freq?: number, scale?: number, offset?: number) => number;
export declare const sin: SinCosFn;
export declare const cos: SinCosFn;
export type Scaler = (scale?: number, offset?: number) => number;
export type Lerpr = (u: number, max: number, margin?: number, min?: number) => number;
export declare const lerp: Lerpr;
export declare const r: Scaler;
export declare const n: Scaler;