函數 numer 與 denom 的規則

分子	分母
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分子

分母

除了除法以外，其他簡單的算術運算會使用分子與分母。

分子	分母	評估
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分子

分母

評估

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為了保持原始運算式的結構，不會解分式的核心 (函數)。

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分子	分母
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<region id="ID0EKQLCB" actualWidth="386.56" actualHeight="51.158666666666669" top="4454.4000000000005" left="76.800000000000011" xmlns="http://schemas.mathsoft.com/worksheet50"> <math resultRef="258"> <symEval xmlns="http://schemas.mathsoft.com/math50"> <apply> <id labels="FUNCTION" xml:space="preserve">numer</id> <apply> <id labels="FUNCTION" label-is-contextual="true" xml:space="preserve">sin</id> <apply> <mult /> <id xml:space="preserve">x</id> <apply> <div /> <real>2.3</real> <real>3.4</real> </apply> </apply> </apply> </apply> <command> <placeholder /> </command> <symResult> <apply> <id labels="FUNCTION" xml:space="preserve">sin</id> <apply> <mult /> <real>0.67647058823529411765</real> <id labels="*" xml:space="preserve">x</id> </apply> </apply> </symResult> </symEval> <resultFormat> <matrix size="12,12" offset="0,0" show-indices="false" expand-nested-arrays="false" /> </resultFormat> </math> </region> 此處會保留變數的除法。	<region id="ID0EGRLCB" actualWidth="185.82333333333335" actualHeight="51.158666666666669" top="4454.4000000000005" left="499.20000000000005" xmlns="http://schemas.mathsoft.com/worksheet50"> <math resultRef="259"> <symEval xmlns="http://schemas.mathsoft.com/math50"> <apply> <id labels="FUNCTION" xml:space="preserve">denom</id> <apply> <id labels="FUNCTION" label-is-contextual="true" xml:space="preserve">sin</id> <apply> <mult /> <id xml:space="preserve">x</id> <apply> <div /> <real>2.3</real> <real>3.4</real> </apply> </apply> </apply> </apply> <command> <placeholder /> </command> <symResult> <real>1.0</real> </symResult> </symEval> <resultFormat> <matrix size="12,12" offset="0,0" show-indices="false" expand-nested-arrays="false" /> </resultFormat> </math> </region>
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