figcaption>
                                Simple curve.
                            </figcaption>
                        </figure>
                    </div>
                    <div>
                        <figure>
                            <img src="../images/chp04/non-simple-curve.svg" alt="Non simple curve" title="Non simple curve" style="width:100%;">
                            <figcaption>
                                Non simple curve.
                            </figcaption>
              