Truncating Decimal Places

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Tarik Razak
Tarik Razak on 23 Feb 2012
Commented: suman pani on 4 Oct 2015
Hi I am trying to figure out how to truncate the decimal places.
Following code
sprintf('%g',round(pi*100)/100)
gives me answer of 3.14
I want to either get 3 as answer or 4 either one is fine.
Any ideas how to do it right.
Thanks
  1 Comment
suman pani
suman pani on 4 Oct 2015
use 'ceil' for 4 and 'floor' for 3. that is
ceil(pi*100/100)=4
floor(pi*100/100)=3

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Answers (2)

Honglei Chen
Honglei Chen on 23 Feb 2012
round(pi)

Walter Roberson
Walter Roberson on 23 Feb 2012
round(), fix(), floor(), ceil() are all important in different contexts. (Some of them will look the same at first, but if you study the behavior for negative numbers you will see differences.)

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