  </figcaption>
                        </figure>
                    </div>
                </div>

                <p>
                    In complex analysis, a piecewise smooth curve $C$ is called a <em>contour</em> or <em>path</em>.
                    We define the <em>positive direction</em> on a contour $C$
                    to be the direction on the curve corresponding to increasing values of the
                    parameter $t.$ It is also said that the curve $C$ has <em>positive orientation</