C ++，舍入数字。 2.5 => 2 || 2.5 => 3 [英] C++, rounding numbers. 2.5 => 2 || 2.5 => 3

问题描述

我通过舍入数字来解决问题。



in matlab我们有一些默认函数来舍入如下数字，



ceil（2.5）= 3;



floor（2.5）= 2;



我在C ++中找不到任何可以做的事情。有人可以帮我吗？



我正在使用visual studio 2010.



谢谢，

Hi,

I''m having a problem by rounding numbers.

in matlab we have some default functions to round numbers as below,

ceil( 2.5 ) = 3;

floor( 2.5 ) = 2;

I didn''t find anything to do these in C++. Can someone help me with that?

I''m using visual studio 2010.

thanks,

推荐答案

C ++中也有ceil和floor函数。包括标题math.h。

There are ceil and floor functions in C++ as well. Include the header math.h.

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