[Lapack] Question regarding boost vector

[Niranjan Patil]

Hello,
I have some questions regarding boost vectors
I have seen two implementation of vector in boost

1) boost/mpl/vector/vector##.hpp
2) boost/numeric/ublas/vector.hpp (provides STL like interface)

My questions  are
1) what is the difference between two implementation?
2) what is the relation between them?
3) when to use either implementation?
4) Do they serve same purpose?

please help
thanks
Niranjan
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