JSON e和JSON E [英] JSON e and JSON E

问题描述

在JSON网站此处上，它解释了JSON对象"的不同可能性.但是，在数字部分中，这些出现:

On the JSON website here, it explains the different possibilities of JSON 'objects'. However, in the numbers section, these appear:

e | e+ | e- | E | E+ | E-

e | e+ | e- | E | E+ | E-

1-这些代表什么?

在寻找答案时，<E>出现很多.

In searching for an answer, <E> appears alot.

2-<E>与上述e | E s相关吗?

2 - Is <E> related to the above e|Es?

推荐答案

这是JSON(和大多数编程语言)用于科学表示法的表示法.科学计数法用于表示非常大或很小的浮点数. e(或等效地E)等效于×10 ^".例如，

It's the notation JSON (and most programming languages) use for scientific notation. Scientific notation is used to denote very large or small floating-point numbers. The e (or equivalently E) is equivalent to "×10^". For example,

3.7e-5 = 3.7E-5 = 3.7×10 ^-5 = 0.000037

3.7e-5 = 3.7E-5 = 3.7×10^-5 = 0.000037

可以使用正或负指数，对于正指数，可以省略+符号:

Positive or negative exponents may be used, and in the case of positive exponents, the + symbol may be omitted:

6.02e+23 = 6.02e23 = 6.02×10 ²³ = 602六兆

6.02e+23 = 6.02e23 = 6.02×10²³ = 602 sextillion

有关更多详细信息，请参见有关科学计数法的维基百科文章.

More details are available at the Wikipedia article on scientific notation.

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