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*<a href="page.php?w=Sine_wave">Sine wave</a>:  The amplitude of the waveform follows a <a href="page.php?w=trigonometric">trigonometric</a> sine function with respect to time.<br/>
*<a href="page.php?w=Square_wave_%28waveform%29">Square wave</a>:  This waveform is commonly used to represent digital information. A square wave of constant <a href="page.php?w=frequency">period</a> contains odd <a href="page.php?w=harmonic">harmonic</a>s that decrease at -6&nbsp;dB/octave.<br/>
*<a href="page.php?w=Triangle_wave">Triangle wave</a>:  It contains</p><p>
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