This is not what I want to do, because my vectors are differents.
But for the records… this might be useful for someone else. Naming doesn’t sound obvious.
TMatrixT<Element>
[...]
Element Similarity (const TVectorT< Element > &v) const
Calculate scalar v * (*this) * v^T.
[..]
NB: It seems complex algebra might not be supported yet. Fail to compile TMatrixT<TComplex> @moneta Were there some progress in this regards ?