arccosh4

- ( arccosh ( 2 x + pi / 2)

<math xmlns="http://www.w3.org/1998/Math/MathML">
  <apply>
    <csymbol cd="arith1">unary_minus</csymbol>
    <apply>
      <csymbol cd="transc1">arccosh</csymbol>
      <apply>
        <csymbol cd="arith1">plus</csymbol>
        <apply>
          <csymbol cd="arith1">times</csymbol>
          <cn>2</cn>
          <ci>x</ci>
        </apply>
        <apply>
          <csymbol cd="arith1">divide</csymbol>
          <csymbol cd="nums1">pi</csymbol>
          <cn>2</cn>
        </apply>
      </apply>
    </apply>
  </apply>
</math>

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