<xs:attribute name="displaystyle" type="xs:boolean"/>
< mml:munder xmlns:mml = "http://www.w3.org/1998/Math/MathML" >
< mml:mstyle mathsize = "140%" displaystyle = "true" >
< mml:mo>
∑
</ mml:mo>
</ mml:mstyle>
< mml:mrow>
< mml:mi>
N
</ mml:mi>
(
h
)
</ mml:mrow>
</ mml:munder>