integral of f(x)
<math xmlns="http://www.w3.org/1998/Math/MathML">
<apply>
<apply>
<csymbol cd="calculus1">int</csymbol>
<bind>
<csymbol cd="fns1">lambda</csymbol>
<bvar>
<ci>x</ci>
</bvar>
<apply>
<ci>f</ci>
<ci>x</ci>
</apply>
</bind>
</apply>
<ci>x</ci>
</apply>
</math>
Author: Design Science, Inc. (E. Cannon, E. Tabacman, R.Miner)