/span></span>)
    </section>
    <section class="desc markdown">
      <p>Converts <code>radians</code> to a <a href="dart-core/double-class.html">double</a> and returns the tangent of the value.</p>
<p>The tangent function is equivalent to <code>sin(radians)/cos(radians)</code> and may be
infinite (positive or negative) when <code>cos(radians)</code> is equal to zero.
If <code>radians</code> is not a finite number, the result is NaN.</p>
    </section>
    
    <section class="summary source-code" id="sou