For loop for matrix with increasing numbers

Question

0 个投票

I'm trying to use a for loop to create a 7x8 matrix that increases by 4 for each number (starting at 1).

So far I have something that goes

for 
k = 1:8 
a(k)=4*k;
end

just to create the first row... how would I go about adding more rows that keep adding increasing elements?

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Answer 1

Image Analyst 2016-3-7

0 个投票

Try this:

theNumber = 1;
for col = 1 : 8
    for row = 1 : 7
        a(row, col) = theNumber;
        theNumber = theNumber + 4;
    end
end

laura9510 2016-3-7

编辑：laura9510 2016-3-7

I was going for increasing in the rows so I just switched the row/column. i.e.

 theNumber = 1;
for row = 1:7
    for col = 1:8
        a(row, col) = theNumber;
        theNumber = theNumber + 4;
    end
end

Thanks for your help!! :)