简体   繁体   English

什么是科学计数法中的小“ e” / Matlab中的Double

[英]What is the Small “e” in Scientific Notation / Double in Matlab

when I calculate a very small number, matlab gives 当我计算一个非常小的数字时,matlab给出
1.12345e-15 What is this? 1.12345e-15这是什么?
I can interpret it as 1.12345*10^(-15) or its 1.12345*e^(-15) I am in very hurry. 我可以将其解释为1.12345 * 10 ^(-15)或其1.12345 * e ^(-15),我非常着急。 Sorry for the stupid question. 很抱歉这个愚蠢的问题。

e represents exponential. e代表指数。 Its the scientific notation of writing numbers. 它是书写数字的科学表示法

The base is 10. For example: 底数是10。例如:

1e2 =100
1e-2= 0.01

e represents scientific notation as Rahul said but it is base 10, not base e. 如Rahul所说,e代表科学计数法,但以10为底,而不是e。

Run the following code to confirm. 运行以下代码进行确认。

1e1

It gives you 它给你

ans = 10

声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.

 
粤ICP备18138465号  © 2020-2024 STACKOOM.COM