From help-request at octave dot org Sun Dec 25 21:05:54 2005
Subject: Re: fractional remainder
From: kamaraju kusumanchi <raju dot mailinglists at gmail dot com>
To: help at octave dot org
CC: help at octave dot org
Date: Sun, 25 Dec 2005 21:57:50 -0500

blah BLABBER wrote:

> Howdy folks,
>
> Question: I am a new Octave user and cannot figure out how to grab the 
> remainder of a fraction. For example, if I take 3/4 = 0.75, I just 
> want to grab the 75.
>
> Reason: I would like to check if the remainder is zero in order to 
> determine if a number is odd or even. Any even number divided by 2 
> will have a remainder of 0, odd numbers will not. I am using this for 
> loop control.
>
> Problem: In Octave,  rem(3,4) gives 3. Obviously I do not understand 
> this function. Can you please suggest the appropriate function to use.
>
> Thanks.

Try the mod function.


octave:1> mod(11,2)
ans = 1
octave:2> mod(10,2)
ans = 0
octave:3> mod(3,4)
ans = 3
octave:4> mod(7,4)
ans = 3

To read about a function you can use the help command. To read about 
rem, type help rem at the octave prompt etc.,

hth
raju

-- 
Kamaraju S Kusumanchi
http://www.people.cornell.edu/pages/kk288/
http://malayamaarutham.blogspot.com/



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