Truncating a number without rounding

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wesso Dadoyan
wesso Dadoyan 2015-8-18
评论： Walter Roberson 2015-8-18
Is it possible to truncate a number in matlab without rounding it to the first decimal point? for example, 5.17 I want it to be 5.1 and not 5.2 Thanks

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Azzi Abdelmalek
Azzi Abdelmalek 2015-8-18
fix(a*10)/10
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Walter Roberson
Walter Roberson 2015-8-18
For negative values you need to figure out whether you want -5.17 to go to -5.1 or to -5.2 . If you want the truncation to be "at most" the original value, then you would use floor(a*10)/10 . If you want the truncation to be "closer to 0" then you would use fix() like Azzi shows.

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