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用來快速知道與y軸交點" + (LaTeX[y軸交點]) + "\\及使用b^2-4ac判斷與x軸相交狀況\\
 \; \\
\underline{標準式}:\\y=" + (LaTeX[a]) + "(x-" + (LaTeX[h]) + ")^2+" + (LaTeX[k]) + " \\
用來快速知道頂點" + (LaTeX[頂點]) + "及對稱軸" + (LaTeX[對稱軸]) + """ />
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