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size(m,2) how the function works?

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Shaila parvin
Shaila parvin 2013-6-29
m=[1,2,3; 4 4 4; 3 3 1];
n=size(m,2);
answer: n=2
I don't understand how this function calculates the answer. Please help me.
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Wayne King
Wayne King 2013-6-29
So this post was a mistake? You did not get an answer of 2 as you report? Then perhaps we should just delete this post?

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Wayne King
Wayne King 2013-6-29
编辑：Wayne King 2013-6-29
m=[1,2,3; 4 4 4; 3 3 1];
n = size(m,2);
returns n = 3
I suspect that you have a different function called size() that precedes the MathWorks' version on your path. Or maybe you have a variable called size() in your program or command window. Both of these possibilities are very bad ideas
If you enter:
>>which size
what do you get. If it says "is a variable", then remove that variable. If you get a path other than something like
matlab\toolbox\matlab\elmat\size
Then remove the other function, or move it to a folder not on the MATLAB path.

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