符號
>
使用符號
>
使用變數
>
清除變數先前的定義
清除變數先前的定義
您可使用符號計算與
factor
關鍵字來因式分解多項式。
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您可將變數
x
設為數值，然後使用符號計算來計算多項式。
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因為變數
x
不再為不明，所以現在因式分解不同的多項式也會傳回數字結果。
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您可使用
clear
函數，透過清除
x
變數的指派數值，以免除該變數。
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另一種使用
clear
函數的方法，就是您可以在
expand
關鍵字後面新增
explicit
修飾符，在目前的符號計算期間，暫時不使用變數的數值。
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複製運算式
