Identity
Identity[expr]
给出 expr(恒等运算).
范例
打开所有单元关闭所有单元
Wolfram Research (1988),Identity,Wolfram 语言函数,https://reference.wolfram.com/language/ref/Identity.html.
文本
Wolfram Research (1988),Identity,Wolfram 语言函数,https://reference.wolfram.com/language/ref/Identity.html.
CMS
Wolfram 语言. 1988. "Identity." Wolfram 语言与系统参考资料中心. Wolfram Research. https://reference.wolfram.com/language/ref/Identity.html.
APA
Wolfram 语言. (1988). Identity. Wolfram 语言与系统参考资料中心. 追溯自 https://reference.wolfram.com/language/ref/Identity.html 年