Asked by huda nawaf
on 9 Apr 2013

hi, I want raounded a number, so I read this link about that http://www.mathworks.com/matlabcentral/answers/37262 But in this case , it rounde any no. ,while I want rounde number meet a condition. for example:

0.2371 be 0.2400

or

0.4546 be 0.4600

but this number 0.2330 , must be not equal 0.2400, must be the same i.e I want round number if the third digit after floating point equal or more than 5

Thanks in advance

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Answer by Walter Roberson
on 10 Apr 2013

Accepted answer

sprintf('%.2f00', round(N * 100) / 100)

Though I admit to being puzzled as to why you want the misleading '00' at the end, why you want 0.2400 instead of 0.24

Answer by Jan Simon
on 10 Apr 2013

If you want it just for displaying, what about:

sprintf('%.3f\n', [0.2371, 0.4546])

I'd definitly omit the trilaing zero, because it is not only confusing, but wrong.

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## 2 Comments

## Walter Roberson (view profile)

Direct link to this comment:http://www.mathworks.com/matlabcentral/answers/71365#comment_142197

Then why would 0.4546 round to 0.4600 and not to .4500, considering that the third digit is

notequal or more than 5 ?Are you wanting to do this numerically or for display purposes?

## huda nawaf (view profile)

Direct link to this comment:http://www.mathworks.com/matlabcentral/answers/71365#comment_142292

thanks, I supposed 0.4546 is equal 0.4550.

currently, I want it just for display.