NegativeRationals
表示严格的负有理数域,如 x∈NegativeRationals.
更多信息
- 如果 x 是一个数值量,x∈NegativeRationals 立即进行计算.
- Simplify[expr∈NegativeRationals,assum] 可用于尝试确定表达式在给定假设下是否为负有理数.
- (x1x2…)∈NegativeRationals 和 {x1,x2,…}∈NegativeRationals 测试是否所有的 xi 都是负有理数.
- 负整数域被认为是负有理数域的子集.
- NegativeRationals 以 StandardForm 或 TraditionalForm 格式输出,如 . 可用 nrats 输入这种排版格式.
范例
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属性和关系 (4)
NegativeRationals 中的成员等价于 Rationals 中负的成员:
NegativeRationals 包含 NegativeIntegers:
NegativeRationals 包含于 NegativeReals、Algebraics 和 Complexes 中:
NegativeRationals 与 NonNegativeRationals 和 PositiveRationals 不相交:
Wolfram Research (2019),NegativeRationals,Wolfram 语言函数,https://reference.wolfram.com/language/ref/NegativeRationals.html.
文本
Wolfram Research (2019),NegativeRationals,Wolfram 语言函数,https://reference.wolfram.com/language/ref/NegativeRationals.html.
CMS
Wolfram 语言. 2019. "NegativeRationals." Wolfram 语言与系统参考资料中心. Wolfram Research. https://reference.wolfram.com/language/ref/NegativeRationals.html.
APA
Wolfram 语言. (2019). NegativeRationals. Wolfram 语言与系统参考资料中心. 追溯自 https://reference.wolfram.com/language/ref/NegativeRationals.html 年