class="op">*</span> <span class="fu"><a href="https://rdrr.io/r/base/Trig.html" class="external-link">sin</a></span><span class="op">(</span><span class="va">phi</span><span class="op">)</span></span>
<span>    <span class="va">y</span> <span class="op">&lt;-</span> <span class="va">yc</span> <span class="op">+</span> <span class="va">Lmaj</span> <span class="op">*</span> <span class="fu"><a href="https://rdrr.io/r/base/Trig.html" class="external-link">cos</a></span><span class="op">(</span><span class="va"