Undefined

Undefined

定義された値を持たない量を表す記号である．

詳細

例題

例  (2)

False条件のConditionalExpressionを評価するとUndefinedになる：

解の数は x の値に依存する：

x=1では，最初の解のみが定義される：

Undefinedを含む数式を評価するとUndefinedになる：

Wolfram Research (2010), Undefined, Wolfram言語関数， https://reference.wolfram.com/language/ref/Undefined.html.

テキスト

Wolfram Research (2010), Undefined, Wolfram言語関数， https://reference.wolfram.com/language/ref/Undefined.html.

CMS

Wolfram Language. 2010. "Undefined." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/Undefined.html.

APA

Wolfram Language. (2010). Undefined. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/Undefined.html

BibTeX

@misc{reference.wolfram_2024_undefined, author="Wolfram Research", title="{Undefined}", year="2010", howpublished="\url{https://reference.wolfram.com/language/ref/Undefined.html}", note=[Accessed: 22-November-2024 ]}

BibLaTeX

@online{reference.wolfram_2024_undefined, organization={Wolfram Research}, title={Undefined}, year={2010}, url={https://reference.wolfram.com/language/ref/Undefined.html}, note=[Accessed: 22-November-2024 ]}