[问题] 请问一个数学常识。

[如果时光可以倒流]

例如，当我们说3.34E+08的时候，E代表什么来着，这个表示什么来着，实在想不起来了。

谢了。

 

[胖蹄阿克]

10的多少次方?
我也不记得了

 

[否极泰来]

如果时光可以倒流,你肯定就知道了。
3.34E+08=3.34*10的8次方。

 

[coolzone]

E代表什么来着? exponent codes in scientific format

To display numbers in scientific format, use "E-," "E+," "e-," or "e+" exponent codes in a section. If a format contains a 0 (zero) or # (number sign) to the right of an exponent code, it displays the number in scientific format and inserts an "E" or "e". The number of 0's or #'s to the right of a code determines the number of digits in the exponent. E- or e- places a minus sign by negative exponents, while E+ or e+ places a plus sign by positive exponents.

最初由 如果时光可以倒流 发布
例如，当我们说3.34E+08的时候，E代表什么来着，这个表示什么来着，实在想不起来了。

谢了。

 

[如果时光可以倒流]

Re: Re: [问题] 请问一个数学常识。

Thanks for your prefessional explanations, coolzone!
I really appreciate that.

最初由 coolzone 发布
E代表什么来着? exponent codes in scientific format

To display numbers in scientific format, use "E-," "E+," "e-," or "e+" exponent codes in a section. If a format contains a 0 (zero) or # (number sign) to the right of an exponent code, it displays the number in scientific format and inserts an "E" or "e". The number of 0's or #'s to the right of a code determines the number of digits in the exponent. E- or e- places a minus sign by negative exponents, while E+ or e+ places a plus sign by positive exponents.

 

[如果时光可以倒流]

比我强，我连10都没想起来。

最初由 胖蹄阿克 发布
10的多少次方?
我也不记得了

 

[如果时光可以倒流]

谢谢了，有界无边。

看来你对我的名字还是真感兴趣。

最初由 有界无边 发布
如果时光可以倒流,你肯定就知道了。
3.34E+08=3.34*10的8次方。

 

[否极泰来]

Re: 谢谢了，有界无边。

最初由 如果时光可以倒流 发布
看来你对我的名字还是真感兴趣。

不仅如此

 

[spsun1]

The above answer is not correct.

e is 2.78....

For example, in the logrithem, Log based 10 and log base e are not the same.

 

[如果时光可以倒流]

So 3.34E+08 should be 3.34X2.78的8次方吗?

最初由 spsun1 发布
The above answer is not correct.

e is 2.78....

For example, in the logrithem, Log based 10 and log base e are not the same.

 

[spsun1]

I am sorry, I was worng. e and E are different.
your Excel will tell you. E is in scientific format.

 

[否极泰来]

最初由 spsun1 发布
I am sorry, I was worng. e and E are different.
your Excel will tell you. E is in scientific format.

我刚要说此e非彼e,你就改过来了。

 

[spsun1]

0.34 =0.34
3.40E-01 =0.34
3.40E+08 =340000000
I copied from Excel.

 

[如果时光可以倒流]

Thank you!

最初由 spsun1 发布
0.34 =0.34
3.40E-01 =0.34
3.40E+08 =340000000
I copied from Excel.

 

[如果时光可以倒流]

spsun1,顺便问一句,你知道我另外一个关于multiple regression问题的答案吗?谢谢了.

最初由 spsun1 发布
0.34 =0.34
3.40E-01 =0.34
3.40E+08 =340000000
I copied from Excel.