範例：轉換繪圖的單位

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範例：轉換繪圖的單位

變更軸運算式的單位。

1. 使用單位定義值域變數與函數。

2. 將函數繪製成圖。

不論輸入的單位為何，刻度線值都會以您使用的單位系統之基本單位進行顯示。

3. 從單位佔位符號刪除公尺縮寫 m，再於空的佔位符號中插入英吋縮寫 in，變更 y 軸運算式的繪製單位。

4. 重新繪製相同的函數，但這一次在單位佔位符號中新增比例係數，而不是轉換單位。

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                <apply xmlns="http://schemas.mathsoft.com/math50">
                  <id xml:space="preserve">dist</id>
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                <id labels="UNIT" xml:space="preserve" xmlns="http://schemas.mathsoft.com/math50">in</id>
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              <math>
                <apply xmlns="http://schemas.mathsoft.com/math50">
                  <id xml:space="preserve">dist</id>
                  <id xml:space="preserve">x</id>
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這些繪線代表對等的數字。例如，第一條繪線上的第二個點位在 79 英吋 = 2 公尺。在第二條繪線上則為 20 * 0.1 m = 2 公尺。

5. 插入兩個水平標記，標示以上兩個數據點。

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                  <id xml:space="preserve">dist</id>
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刻度線與標號說明值為無單位。只有軸運算式可以使用單位。

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