<function>cbrt</function> ( <type>double precision</type> )
        <returnvalue>double precision</returnvalue>
       </para>
       <para>
        Cube root
       </para>
       <para>
        <literal>cbrt(64.0)</literal>
        <returnvalue>4</returnvalue>
       </para></entry>
      </row>

      <row>
       <entry role="func_table_entry"><para role="func_signature">
        <indexterm>
         <primary>ceil</primary>
        </indexterm>
        <function>ceil</function> ( <type>numeric</type> )
        <returnvalue>numeric</returnvalue>
       </para>
       <para role="func_signature">
        <function>ceil</function> ( <type>double precision</type> )
        <returnvalue>double precision</returnvalue>
       </para>
       <para>
        Nearest integer greater than or equal to argument
       </para>
       <para>
        <literal>ceil(42.2)</literal>
        <returnvalue>43</returnvalue>
       </para>
       <para>
        <literal>ceil(-42.8)</literal>
        <returnvalue>-42</returnvalue>
       </para></entry>
      </row>

      <row>
       <entry role="func_table_entry"><para role="func_signature">
        <indexterm>
         <primary>ceiling</primary>
        </indexterm>
        <function>ceiling</function> ( <type>numeric</type> )
        <returnvalue>numeric</returnvalue>
       </para>
       <para role="func_signature">
        <function>ceiling</function> ( <type>double precision</type> )
        <returnvalue>double precision</returnvalue>
       </para>
       <para>
        Nearest integer greater than or equal to argument (same
        as <function>ceil</function>)
       </para>
       <para>
        <literal>ceiling(95.3)</literal>
        <returnvalue>96</returnvalue>
       </para></entry>
      </row>

      <row>
       <entry role="func_table_entry"><para role="func_signature">
        <indexterm>
         <primary>degrees</primary>
        </indexterm>
        <function>degrees</function> ( <type>double precision</type> )
        <returnvalue>double precision</returnvalue>
       </para>
       <para>
        Converts radians to degrees
       </para>
       <para>
        <literal>degrees(0.5)</literal>
        <returnvalue>28.64788975654116</returnvalue>
       </para></entry>
      </row>

      <row>
       <entry role="func_table_entry"><para role="func_signature">
        <indexterm>
         <primary>div</primary>
        </indexterm>
        <function>div</function> ( <parameter>y</parameter> <type>numeric</type>,
        <parameter>x</parameter> <type>numeric</type> )
        <returnvalue>numeric</returnvalue>
       </para>
       <para>
        Integer quotient of <parameter>y</parameter>/<parameter>x</parameter>
        (truncates towards zero)
       </para>
       <para>
        <literal>div(9, 4)</literal>
        <returnvalue>2</returnvalue>
       </para></entry>
      </row>

      <row>
       <entry role="func_table_entry"><para role="func_signature">
        <indexterm>
         <primary>erf</primary>
        </indexterm>
        <function>erf</function> ( <type>double precision</type> )
        <returnvalue>double precision</returnvalue>
       </para>
       <para>
        Error function
       </para>
       <para>
        <literal>erf(1.0)</literal>
        <returnvalue>0.8427007929497149</returnvalue>
       </para></entry>
      </row>

      <row>
       <entry role="func_table_entry"><para role="func_signature">
        <indexterm>
         <primary>erfc</primary>
        </indexterm>
        <function>erfc</function> ( <type>double precision</type> )
        <returnvalue>double precision</returnvalue>
       </para>
       <para>
        Complementary error function (<literal>1 - erf(x)</literal>, without
        loss of precision for large inputs)
       </para>
       <para>
        <literal>erfc(1.0)</literal>
        <returnvalue>0.15729920705028513</returnvalue>
       </para></entry>
      </row>

      <row>
       <entry role="func_table_entry"><para