sech3

1 / sech(t)

W3C sample	WIRIS
[N/A]	$divide 1 sech t$

<math xmlns="http://www.w3.org/1998/Math/MathML">
  <apply>
    <csymbol cd="arith1">divide</csymbol>
    <cn>1</cn>
    <apply>
      <csymbol cd="transc1">sech</csymbol>
      <ci>t</ci>
    </apply>
  </apply>
</math>

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