Rank: 6573 based on 9 downloads (last 30 days) and 1 file submitted
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Catalin Serban

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Student in UPB bucharest


 

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11 Jan 2012 Band matrix generation Generates a band matrix Author: Catalin Serban band matrix 9 2
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13 Jan 2012 Band matrix generation Generates a band matrix Author: Catalin Serban Matt Fig

Caitlin, why did you submit two identical files? Did you do this by mistake, perhaps?

Also, you really should at least familiarize yourself with the ONES function in MATLAB, it would be most useful in your function...

11 Jan 2012 Band matrix generation Generates a band matrix Author: Catalin Serban Duane Hanselman

Start with a matrix of zeros, change all the values to 1 individually through a nested for loop, then use another nested for loop to change some of them back to zeros.
The author at least deserves credit for preallocating memory.
This is why so much effort was put into implementing JIT.

Here is the entirety of what is in this file:

function [G]=bandmatrix(n,k1,k2)
G=zeros(n,n);
for i=1:n
for j=1:n
G(i,j)=1;
end
end
for i=1:n
for j=1:n
if (j<i-k1) G(i,j)=0;
end
if(j>i+k2) G(i,j)=0;
end
end
end

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