NonPositiveRationals
表示非负正理数域,如 x∈NonPositiveRationals.
更多信息
- 如果 x 是一个数值量,x∈NonPositiveRationals 立即进行计算.
- Simplify[expr∈NonPositiveRationals,assum] 可用于尝试确定表达式在给定假设下是否为非正有理数.
- (x1x2…)∈NonPositiveRationals 和 {x1,x2,…}∈NonPositiveRationals 测试是否所有的 xi 都是非正有理数.
- 非正整数域被认为是非正有理数域的子集.
- NonPositiveRationals 以 StandardForm 或 TraditionalForm 格式输出,如 . 可用 nprats 输入这种排版格式.
范例
打开所有单元关闭所有单元范围 (5)
属性和关系 (4)
NonPositiveRationals 中的成员等价于 Rationals 中的非正成员:
NonPositiveRationals 包含 NonPositiveIntegers:
NonPositiveRationals 被包含于 NonPositiveReals、Algebraics 和 Complexes 中:
Wolfram Research (2019),NonPositiveRationals,Wolfram 语言函数,https://reference.wolfram.com/language/ref/NonPositiveRationals.html.
文本
Wolfram Research (2019),NonPositiveRationals,Wolfram 语言函数,https://reference.wolfram.com/language/ref/NonPositiveRationals.html.
CMS
Wolfram 语言. 2019. "NonPositiveRationals." Wolfram 语言与系统参考资料中心. Wolfram Research. https://reference.wolfram.com/language/ref/NonPositiveRationals.html.
APA
Wolfram 语言. (2019). NonPositiveRationals. Wolfram 语言与系统参考资料中心. 追溯自 https://reference.wolfram.com/language/ref/NonPositiveRationals.html 年