tendsto4

tendsto with <reln>

W3C sample	WIRIS
	$\left(\begin{array}{c}x\\ y\end{array}\right)\to \left(\begin{array}{c}f(x, y)\\ g(x, y)\end{array}\right)$

<math xmlns="http://www.w3.org/1998/Math/MathML">
  <reln>
    <tendsto/>
    <vector>
      <ci>x</ci>
      <ci>y</ci>
    </vector>
    <vector>
      <apply>
        <fn>
          <ci>f</ci>
        </fn>
        <ci>x</ci>
        <ci>y</ci>
      </apply>
      <apply>
        <fn>
          <ci>g</ci>
        </fn>
        <ci>x</ci>
        <ci>y</ci>
      </apply>
    </vector>
  </reln>
</math>

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