MATLAB round function - how does it round .5 up or down?

Question

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

Answer 1

Wikipedia knows:

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.

There's a little more information on this scheme (Round half away from zero), and many others, in the article on rounding.

Answer 2

>> round([-0.5 0.5])

ans =

    -1     1

Answer 3

please type 'round(0.5)' in matlab... more efficient than writing on here

Answer 4

This Rounding Functions Collection that is available on MATLAB Exchange might be of interest as well. It includes M-files/code for several rounding methods that are not included with MATLAB, and a pdf illustrating these together with the standard MATLAB rounding methods.