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Excel浮点数算术——它实际上使用的是什么类型?
原标题:Excel Floating Point Arihmetic - What Type Does It Actually Use
  • 时间:2010-02-11 14:23:41
  •  标签:
  • excel

从之前的问题中,有人指出Excel使用64位(8字节)双精度浮点数。

这正确吗-这方面有任何资料吗?

我正在尝试绑定数字,这让我痛苦不堪!

问题回答

根据这篇文章,是使用64位双精度浮点数。该文章还描述了与该格式相关的舍入误差等问题。

看一下

浮点运算

在“精度”部分下面

A floating-point number is stored in binary in three parts within a 65-bit range: the sign, the exponent, and the mantissa.

这是另一篇文章。

了解浮点精度,又称“为什么Excel给我似乎错误的答案?”

看一下 the section Structure of a Floating Point Number





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