>
			[page:Array array] - (optional) The target array.<br />
			[page:Number offset] - (optional) The array offset.<br /><br />

			Returns an array with the coefficients, or copies them into the provided
			array. The coefficients are represented as numbers.
		</p>

		<h3>[method:this zero]()</h3>
		<p>Sets all SH coefficients to `0`.</p>

		<h2>Static Methods</h2>

		<h3>
			[method:undefined getBasisAt]( [param:Vector3 normal], [param:Array shBasis] )
		</h3>
		<p>
			[page:Vector3 normal] - The normal v