usual infix and prefix notations as <code>x + y</code> and <code>-x</code>, respectively.</p>
<div id="binary-infix-operators-1" class="section level3" number="3.6.1">
<h3><span class="header-section-number">3.6.1</span> Binary infix operators</h3>
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<p></p>
<p><code>real</code> <strong><code>operator+</code></strong><code>(real x, real y)</code><br>
Return the sum of x and y. <span class="math display">\[ (x + y) = \text{operator+}(x,y) = x+y \]</span></p>
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