icalHarmonics3 sh], [param:Number scale] )
		</h3>
		<p>
			[page:SphericalHarmonics3 sh] - The SH to add.<br />
			[page:Number scale] - The scale factor.<br /><br />

			A convenience method for performing [page:.add]() and [page:.scale]() at
			once.
		</p>

		<h3>[method:SphericalHarmonics3 clone]()</h3>
		<p>Returns a new instance of [name] with equal coefficients.</p>

		<h3>[method:this copy]( [param:SphericalHarmonics3 sh] )</h3>
		<p>
			[page:SphericalHarmonics3 sh] - The SH to copy.<br /><br />

