 < points_for_interpolation.length; ++j) {
			formula_html += "<td style=\"padding:2pt 6pt 2pt 6pt;\">";
			if(j == 0)
				formula_html += "<table><tr><td rowspan=2>1</td><td style=\"font-size: 10pt;\">&nbsp;</td></tr><tr><td style=\"font-size: 10pt;\">&nbsp;</td></tr></table>";
			else if(j == 1)
				formula_html += "<table><tr><td rowspan=2>x</td><td style=\"font-size: 10pt;\">&nbsp;</td></tr><tr><td style=\"font-size: 10pt;\">" + String(i + 1) + "</td></tr></table>";
			else
				formula_html += "<table><