ximation-of-a-square-signal-by-additive-synthesis" class="nav-link">Example 6: Approximation of a square signal by additive synthesis</a>
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            <li class="nav-item" data-level="3"><a href="#example-7-approximation-of-a-sawtooth-signal-by-additive-synthesis" class="nav-link">Example 7: Approximation of a sawtooth signal by additive synthesis</a>
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