例: 誤差関数

1. erf関数を使用して、x のさまざまな値に対して誤差関数をプロットします。

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                  <id xml:space="preserve">erf</id>
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              <math resultRef="102">
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関数 erf は直線 y=0 について対称です。

2. erfc関数を使用して、x のさまざまな値に対して相補誤差関数をプロットします。

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              <math resultRef="121">
                <apply xmlns="http://schemas.mathsoft.com/math50">
                  <id xml:space="preserve">erfc</id>
                  <id xml:space="preserve">x</id>
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              <math resultRef="122">
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関数 erfc は直線 y=1.0 について対称です。

3. プロットを作成して、x のさまざまな値における erf 関数と erfc 関数の関係を示します。

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              <math resultRef="143">
                <apply xmlns="http://schemas.mathsoft.com/math50">
                  <id xml:space="preserve">erf</id>
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関数は直線 y=0.5 について対称です。

4. プロットを作成して、x のさまざまな値における erfc(x)=1-erf(x) を表示します。

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