ed value="Move"><label for="b_2">move a point.</label> &nbsp;
		<button type="button" style="width: 108pt;" onclick="undo_last_for_both()"><nobr>Undo last</nobr></button>
		<button type="button" style="width: 108pt;" onclick="reset_all_for_both()"><nobr>Reset all</nobr></button>
	</div>

	<script language="JavaScript">
	init_approximation_canvas();
	init_interpolation_canvas();
	init_both_canvas();
	reset_values();
	</script>

	<h2>
Conclusion
	</h2>
	<p>
Both polynomial approximation and interpolation are 