import Matrix from './Matrix';
export default class Matrix2 extends Matrix {
    readonly a: number;
    readonly b: number;
    readonly c: number;
    readonly d: number;
    static readonly ElementCount: number;
    constructor(a?: number, b?: number, c?: number, d?: number);
    get elements(): number[];
    determine(): number;
    add({ elements }: Matrix2): Matrix2;
    multiply(m2: Matrix2): Matrix2;
    multiplyScalar(scalar: number): Matrix2;
    invert(): Matrix2;
}
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