function exactEquals$8(a, b) {
    return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] && a[3] === b[3];
  }
Returns whether or not the matrices have exactly the same elements in the same position (when compared with ===)

@param {ReadonlyMat2} a The first matrix.
@param {ReadonlyMat2} b The second matrix.
@returns {Boolean} True if the matrices are equal, false otherwise.