import { Vector2 } from '.';
export declare class Matrix3 {
    m11: number;
    m12: number;
    m13: number;
    m21: number;
    m22: number;
    m23: number;
    m31: number;
    m32: number;
    m33: number;
    isIdentity: boolean;
    translation: Vector2;
    static readonly Identity: Matrix3;
    constructor(m11?: number, m12?: number, m13?: number, m21?: number, m22?: number, m23?: number, m31?: number, m32?: number, m33?: number);
    /**
     * Calculates the determinant for this matrix.
     */
    determinant(): number;
    /**
     * Calculates the determinant for this matrix.
     */
    det(): number;
    /**
     * Returns a value that indicates whether this instance and another 3x3 matrix are equal.
     */
    equals(m: Matrix3): boolean;
    /**
     * Returns a new Matrix3 and with identical elements to this one.
     */
    clone(): Matrix3;
    /**
     * Adds each element in one matrix with its corresponding element in a second matrix.
     */
    static add(m1: Matrix3, m2: Matrix3): Matrix3;
    /**
     * Subtracts each element in a second matrix from its corresponding element in a first matrix.
     */
    static sub(m1: Matrix3, m2: Matrix3): Matrix3;
    /**
     * Returns the matrix that results from multiplying two matrices together.
     */
    static multiply(m1: Matrix3, m2: Matrix3): Matrix3;
    /**
     * Returns the matrix that results from scaling all the elements of a specified matrix by a scalar factor.
     */
    static multiplyScalar(m: Matrix3, s: number): Matrix3;
    /**
     * Transposes the rows and columns of a matrix.
     */
    static transpose(m: Matrix3): Matrix3;
    /**
     * Inverts the specified matrix. The return value indicates whether the operation succeeded.
     */
    static invert(m: Matrix3, result: Matrix3): boolean;
    /**
     * Negates the specified matrix by multiplying all its values by -1.
     */
    static negate(m: Matrix3): Matrix3;
    /**
     * Performs a linear interpolation from one matrix to a second matrix based on a value that specifies the weighting of the second matrix.
     */
    static lerp(m1: Matrix3, m2: Matrix3, alpha: number): Matrix3;
    /**
     * Creates a translation matrix from the specified 2-dimensional vector.
     */
    static createTranslation(v: Vector2): Matrix3;
    /**
     * Creates a rotation matrix using the given rotation in radians and a center point (if specified).
     */
    static createRotation(angle: number, center?: Vector2): Matrix3;
    /**
     * Creates a scaling matrix from the specified vector scale and a center point (if specified).
     */
    static createScaleVec(v: Vector2, center?: Vector2): Matrix3;
    /**
     * Creates a scaling matrix that scales uniformly with the given scale and a center point (if specified).
     */
    static createScaleScalar(s: number, center?: Vector2): Matrix3;
    /**
     * Creates a skew matrix from the specified angles in radians and a center point (if specified).
     */
    static createSkew(angleX: number, angleY: number, center?: Vector2): Matrix3;
}