
<span class="sd">        f_{n} = \\frac{\\tan^{-1}(\\ b_{n}\\ ) }{\\pi}</span>

<span class="sd">    .. math::</span>

<span class="sd">        x_{n} = \\frac{d_{n}}{|\\ d_{n}\\ |}</span>

<span class="sd">    .. math::</span>

<span class="sd">        y_{n} = b_{n} x_{n-1}</span>

<span class="sd">    .. math::</span>

<span class="sd">        e_{n} = d_{n} - y_{n}</span>

<span class="sd">    .. math::</span>

<span class="sd">        b_{0} = e^{\\ j\\ \\pi\\ f_{0}}</span>

<span class="sd">    .. math::