identity() {
    this._elements = [
      [1, 0, 0],
      [0, 1, 0],
      [0, 0, 1],
    ];
    return this;
  }
/**
   * Resets the inner elements of the matrix to identity values.
   */
Resets the inner elements of the matrix to identity values.
Resets the inner elements of the matrix to identity values .
identity() {
    this._elements = [
      [1, 0, 0],
      [0, 1, 0],
      [0, 0, 1],
    ];
    return this;
  }
identity ( ) { this . _elements = [ [ 1 , 0 , 0 ] , [ 0 , 1 , 0 ] , [ 0 , 0 , 1 ] , ] ; return this ; }
Resets the inner elements of the matrix to identity values.
Resets the inner elements of the matrix to identity values .