MATLAB舍入函数-如何向上或向下舍入.5? [英] MATLAB round function - how does it round .5 up or down?

问题描述

MATLAB的round函数如何与.5一起使用?像5.5吗?是四舍五入还是四舍五入?讨论此功能的Mathworks页面对此一无所获，该示例也无济于事！

How does MATLAB's round function work with .5? Like 5.5? Does it round up to 6, or round down to 5? The Mathworks page talking about this function says nothing about this, and the example doesn't help either!

这是MATLAB圆形函数的mathworks页面:

Here is the mathworks page for the MATLAB round function:

​​ mathworks round函数页面

推荐答案

维基百科知道:

四舍五入(X):四舍五入到最接近的整数， 拖至最近的5个轮 远离零的整数.例如， round(2.5)返回3;圆(-2.5) 返回-3.

round(X): round to nearest integer, trailing 5 rounds to the nearest integer away from zero. For example, round(2.5) returns 3; round(-2.5) returns -3.

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