Range Variable Iteration and Multidimensional Arrays≔i‥05 ≔j‥03 ≔k‥06≔xii≔yj+j1 ≔zk−k1=x012345⎡⎢⎢⎢⎢⎢⎢⎣⎤⎥⎥⎥⎥⎥⎥⎦=y1234⎡⎢⎢⎢⎣⎤⎥⎥⎥⎦=z−1012345⎡⎢⎢⎢⎢⎢⎢⎢⎣⎤⎥⎥⎥⎥⎥⎥⎥⎦≔A,ij+xiyj=A123423453456456756786789⎡⎢⎢⎢⎢⎢⎢⎣⎤⎥⎥⎥⎥⎥⎥⎦≔B,,ijk++xiyjzkdoesn't work =B?Range variable iteration works only with 1 or two subscripts, not 3 or moreCan create multidimensional array (vector of matrices) instead:≔M,530allocate matrix of zeroes (size: max i by max j)≔BkM=B[6 × 4][6 × 4][6 × 4][6 × 4][6 × 4][6 × 4][6 × 4]⎡⎢⎢⎢⎢⎢⎢⎢⎣⎤⎥⎥⎥⎥⎥⎥⎥⎦=B0000000000000000000000000⎡⎢⎢⎢⎢⎢⎢⎣⎤⎥⎥⎥⎥⎥⎥⎦=B1000000000000000000000000⎡⎢⎢⎢⎢⎢⎢⎣⎤⎥⎥⎥⎥⎥⎥⎦≔⎛⎝Bk⎞⎠,ij++xiyjzkthis doesn't work either =B?Non-Commercial Use OnlyNeed to create it in a program instead:≔B‖‖‖‖‖‖‖‖‖‖‖‖‖‖‖‖‖‖||||||||||||||||←M,530for ∊|||||||||||||k‥06‖‖‖‖‖‖‖‖‖‖‖‖for ∊|||||||||i‥05‖‖‖‖‖‖‖‖‖for ∊|||||||j‥03‖‖‖‖‖‖‖←xi←y+j1←z−k1←M,ij++xyz←BkMB=B[6 × 4][6 × 4][6 × 4][6 × 4][6 × 4][6 × 4][6 × 4]⎡⎢⎢⎢⎢⎢⎢⎢⎣⎤⎥⎥⎥⎥⎥⎥⎥⎦=B0012312342345345645675678⎡⎢⎢⎢⎢⎢⎢⎣⎤⎥⎥⎥⎥⎥⎥⎦=B1123423453456456756786789⎡⎢⎢⎢⎢⎢⎢⎣⎤⎥⎥⎥⎥⎥⎥⎦=B6678978910891011910111210 11 12 1311 12 13 14⎡⎢⎢⎢⎢⎢⎢⎣⎤⎥⎥⎥⎥⎥⎥⎦Non-Commercial Use
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