]> MathToWeb (MathML example) MathML generated by MathToWeb
A MathML example displaying the Latex command \underbrace{...}.

$\underbrace{A_p = g_{pq}A^p}_{ \text{ For rectangular coordinates $g_{pq}=1$ if $p=q$, and $0$ if $p \ne q$ } }$

A p = g pq A p  For rectangular coordinates  g pq =1 if p=q, and 0 if p ≠ q 

<math xmlns="http://www.w3.org/1998/Math/MathML">
<mrow>
	<mstyle displaystyle="true">
		<munder>
			<mrow>
				<munder accentunder="true">
					<mrow>
						<msub>
							<mi>A</mi>
							<mi>p</mi>
						</msub>
						<mo>=</mo>
						<msub>
							<mi>g</mi>
							<mi>pq</mi>
						</msub>
						<msup>
							<mi>A</mi>
							<mi>p</mi>
						</msup>
					</mrow>
					<mo stretchy="true">&UnderBrace;</mo>
				</munder>
			</mrow>
			<mrow>
				<mtext>&nbsp;For&nbsp;rectangular&nbsp;coordinates&nbsp;
					<msub>
						<mi>g</mi>
						<mi>pq</mi>
					</msub>
				=1&nbsp;if&nbsp;p=q,&nbsp;and&nbsp;0&nbsp;if&nbsp;p&nbsp;&ne;&nbsp;q&nbsp;</mtext>
			</mrow>
		</munder>
	</mstyle>
</mrow>
</math>