What is the right way to declare of matrix whose coefficients are functions of a variable $x$ ?
I tried :
Table[Table[a[i,j][x_],{j,1,NN}],{i,1,NN}]
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4
2 Answers
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f[x_, n_] := Table[Table[a[i, j, x], {j, 1, n}], {i, 1, n}]
for example
f[x, 4] // MatrixForm
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It's worth knowing about the Array function which might be used like this:
Array[a[#1, #2][x_] &, {4, 4}]
This reproduces the output of OP's initial version (with NN set to 4). I'm not convinced that that is really what OP wants, so this variation
Array[a[#1, #2, x_] &, {4, 4}]
might also appeal.
answered Apr 28, 2019 at 10:59
Nas a variable change it.. $\endgroup$Table[Table[a[i, j, x_], {j, 1, 2}], {i, 1, 2}]$\endgroup$Table[a[i, j][x_], {i, 1, NN}, {j, 1, NN}]? Why two calls toTable? $\endgroup$