export declare class Point {
    x: number;
    y: number;
    constructor(x?: number, y?: number);
    sub(pt: Point): Point;
    subSelf(pt: Point): void;
    add(pt: Point): Point;
    addSelf(pt: Point): void;
    equals(pt: Point): boolean;
    fuzzyEqual(pt: Point, w: number): boolean;
    length(): number;
    mul(n: number): Point;
    mulSelf(n: number): void;
    toI(): Point;
    normalize(): Point;
    normalizeSelf(): void;
}