sum2

Sum as x goes from a to b of f(x)

W3C sample	WIRIS
[N/A]	$sum integer_interval a b lambda x f x$

<math xmlns="http://www.w3.org/1998/Math/MathML">
  <apply>
    <csymbol cd="arith1">sum</csymbol>
    <apply>
      <csymbol cd="interval1">integer_interval</csymbol>
      <ci>a</ci>
      <ci>b</ci>
    </apply>
    <bind>
      <csymbol cd="fns1">lambda</csymbol>
      <bvar>
        <ci>x</ci>
      </bvar>
      <apply>
        <ci>f</ci>
        <ci>x</ci>
      </apply>
    </bind>
  </apply>
</math>

Author: Design Science, Inc. (E. Cannon, E. Tabacman, R.Miner)