m = [[[math.inf] * 10] for i in range(10)]for i in range(len(m)): for j in range(len(m)): if(i == j): m[i][i] = 0
I try to insert zero And I used the debugger to watch the process go. Instead of changing it to
[[[0,inf,inf,inf,inf,inf,inf,inf,inf,inf],[......],[.......]]]It changes it to
[[0], [[inf,inf,inf,inf....],[inf,inf,....]]Which then causes an index out of bound error because it just reduced a 10x10 matrix to the top row being zero,as opposed to inf,inf,inf,inf,inf,inf,inf,inf,inf,inf.
Where my goal is to set a 10x10 matrix's diagonal to all zeros.
I tried to use:
m = [[[math.inf] * 10] for i in range(10)]