E (ⅇ) : 欧拉数（!

按以下格式引用：Wolfram Research (1988)，E，Wolfram 语言函数，https://reference.wolfram.com/language/ref/E.html （更新于 2002 年）.

Wolfram Research (1988)，E，Wolfram 语言函数，https://reference.wolfram.com/language/ref/E.html （更新于 2002 年）.

Wolfram 语言. 1988. "E." Wolfram 语言与系统参考资料中心. Wolfram Research. 最新版本 2002. https://reference.wolfram.com/language/ref/E.html.

Wolfram 语言. (1988). E. Wolfram 语言与系统参考资料中心. 追溯自 https://reference.wolfram.com/language/ref/E.html 年

@misc{reference.wolfram_2025_e, author="Wolfram Research", title="{E}", year="2002", howpublished="\url{https://reference.wolfram.com/language/ref/E.html}", note=[Accessed: 05-January-2026]}

@online{reference.wolfram_2025_e, organization={Wolfram Research}, title={E}, year={2002}, url={https://reference.wolfram.com/language/ref/E.html}, note=[Accessed: 05-January-2026]}