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2106 :: matrix array

• nyl (orginal) [2016-03-07T23:37:58+01:00] view original

  I have the following matrix array:

  const
    xlen = 3
    ylen = 4
  
  var
    matrix: array[1..ylen, array[1..xlen, int]]
  
  matrix = [
          [0,0,0],
          [1,3,1],
          [0,2,6],
          [0,0,3]
          ]
  Run

  I would like to create many matrixes and call it like matrix[x]

  matrix[1] = [
          [0,5,0],
          [1,5,1],
          [0,2,9],
          [0,9,9]
          ]
  
  matrix[2] = [
          [2,2,0],
          [1,3,1],
          [2,2,6],
          [4,0,4]
          ]
  
  matrix[3] = [
          [1,0,0],
          [1,3,1],
          [0,2,6],
          [0,0,2]
          ]
  Run

  how do I go about doing this ?

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• srwiley (orginal) [2016-03-08T05:36:06+01:00] view original

  Do you mean something like this?

  const
    xlen = 3
    ylen = 4
    zlen = 3
    matrix : array[1..zlen, array[1..ylen, array[1..xlen, int]]] =
        [[[0,5,0],
          [1,5,1],
          [0,2,9],
          [0,9,9]],
         [[2,2,0],
          [1,3,1],
          [2,2,6],
          [4,0,4]],
         [[1,0,0],
          [1,3,1],
          [0,2,6],
          [0,0,2]]]
  Run

  It is rare in most practical applications to require matrices of over 2 dimensions, but here you go. Also, you can do the same in less code if you want to use zero as the first index.

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• nyl (orginal) [2016-03-08T07:53:14+01:00] view original

  thank you that's exactly what I was looking for

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