Given a vector of positive integers
a = [ 3 2 4 ];
create the matrix where the i th column contains the vector 1:a(i) possibly padded with zeros:
b = [ 1 1 1
2 2 2
3 0 3
0 0 4 ];
433 Solvers
Back to basics 23 - Triangular matrix
493 Solvers
Construct an index vector from two input vectors in vectorized fashion
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