q = [
0.87 0 0
0.58 0.85 0
0.55 0.62 0.40]
>> q' % this transposes..
ans =
0.87 0.58 0.55
0 0.85 0.62
0 0 0.40
If you want to find the lower and upper triangular matrices of any matrix use
doc tril
doc triu
Eg.
c=rand(3,3)
tril(c)
triu(c)