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$MinNumber

给出能在一个特定计算机系统上表示的任意精度最小正数.

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按以下格式引用：

$MinNumber

$MinNumber

给出能在一个特定计算机系统上表示的任意精度最小正数.

更多信息

范例

打开所有单元 关闭所有单元

基本范例  (2)

该计算机系统中可表示的最小量度非零数为：

Wolfram Language code: $MinNumber

更小的数将下溢：

Wolfram Language code: $MinNumber / 2

属性和关系  (3)

$MinNumber 含有最小可能的二进制指数：

Wolfram Language code: RealDigits[$MinNumber, 2]

$MinNumber×$MaxNumber 的结果近似 1：

Wolfram Language code: $MinNumber * $MaxNumber

$MinNumber 不是一个机器数：

Wolfram Language code: MachineNumberQ[$MinNumber]

它的精度等同于机器数的精度：

Wolfram Language code: Precision[$MinNumber] == MachinePrecision
Wolfram Research (1996)，$MinNumber，Wolfram 语言函数，https://reference.wolfram.com/language/ref/$MinNumber.html.

文本

Wolfram Research (1996)，$MinNumber，Wolfram 语言函数，https://reference.wolfram.com/language/ref/$MinNumber.html.

CMS

Wolfram 语言. 1996. "$MinNumber." Wolfram 语言与系统参考资料中心. Wolfram Research. https://reference.wolfram.com/language/ref/$MinNumber.html.

APA

Wolfram 语言. (1996). $MinNumber. Wolfram 语言与系统参考资料中心. 追溯自 https://reference.wolfram.com/language/ref/$MinNumber.html 年

BibTeX

@misc{reference.wolfram_2026_$minnumber, author="Wolfram Research", title="{$MinNumber}", year="1996", howpublished="\url{https://reference.wolfram.com/language/ref/$MinNumber.html}", note=[Accessed: 24-August-2026]}

BibLaTeX

@online{reference.wolfram_2026_$minnumber, organization={Wolfram Research}, title={$MinNumber}, year={1996}, url={https://reference.wolfram.com/language/ref/$MinNumber.html}, note=[Accessed: 24-August-2026]}