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in reply to Re^2: How to make this code more flexible
in thread How to make this code more flexible

Why'd I print the first row, third column? I was just demonstrating. It worked for me when I tested it, so I don't know why it does not work for you. Note that I changed the return from a hash to an array.

The whole idea is that you specify the matrix size in the call to the sub.

So, you are just learning? Play with the code a bit to see what happens. That's one of the best ways to learn.

  • Comment on Re^3: How to make this code more flexible

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Re^4: How to make this code more flexible
by DanielM0412 (Acolyte) on Jul 25, 2011 at 14:07 UTC
    okay, and the data dumper shows nothing but "undefined"
[reply]
      My code gives exactly the following. 
       perl tst.pl
$VAR1 = [
          [
            '11',
            '12',
            '13',
            '14',
            '15',
            '16',
            '17'
          ],
          [
            '21',
            '22',
            '23',
            '24',
            '25',
            '26',
            '27'
          ],
          [
            '31',
            '32',
            '33',
            '34',
            '35',
            '36',
            '37'
          ],
          [
            '41',
            '42',
            '43',
            '44',
            '45',
            '46',
            '47'
          ],
          [
            '51',
            '52',
            '53',
            '54',
            '55',
            '56',
            '57'
          ]
        ];
1st row, 3rd column: 13

      [download]
      You need to compare carefully the differences between what I wrote, and what you wrote.

      Are you calling the function with three parameters?

[reply]
[d/l]
        what does variable i and j represent?? is it the dimensions of the array? (sorry for asking the obvious, im not sure) and i will look closer, thanks
[reply]

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