How can I build a matrix in matlab?

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Hi I want to build a m*n matrix in Matlab but i don't know how? I know I can build a vector with many ways but about matrices I couldn't find any way!

For example if I want to build a matrix 100*100 like this:
[1 2 3 .......100
1 2 3 .......100
1 2 3 .......100
.
.
.
1 2 3 .......100]

How can I build it?

I've found a way but don't know is it the best or not?

a=1:100;
b=a([1 1 1 1....(100times)], [1:end]);

Posted 5-Nov-14 22:58pm

hor_313

Updated 5-Nov-14 23:10pm

v3

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Peter Leow · Answer 1 · 2014-11-06T00:51:00

Solution 1

Try this:

VB

% create an all zeros 100x100 matrix
m=100;
n=100;
matrix = zeros(m, n);
% create a column vector of 1x100
v = 1:n;
v
% create a 100x100 matrix
for r=1:m
   matrix(r, :) = v;
end
matrix

Posted 6-Nov-14 0:51am

Peter Leow

Updated 6-Nov-14 2:12am

v2

Comments

Albert Holguin 6-Nov-14 10:47am

+5... it's pretty trivial. For the OP, don't forget you can experiment with things right no the command prompt. If you're not sure what a call does, type in on the prompt and don't put a semicolon at the end and it will output to the prompt.

How can I build a matrix in matlab?

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How can I build a matrix in matlab?

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