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Calculation error


From: asha g
Subject: Calculation error
Date: Wed, 20 Feb 2013 14:19:39 +0800 (SGT)

I am getting an error while calculating the following using Octave 3.2 . Can you please crosscheck. Also, when I write ln( ro/rl)/l - I get an error  message. can ln not be computed in Octave ? I would like to get the values of rho and rx. Thanks Asha G
 
l = 400*10^-4; % in cm
ro= 1.85*10^-4;% in cm
rl= 0.3*10^-4;%in cm
rho = (2.303/l)*log(ro/rl)
%rho = ln(ro/rl)/l;
x = linspace(0,l,N)
rx= ro*(exp(-rho*x)) 
 
 
 


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