[Numpy-discussion] newbie doubt about dot()

[harryos]

i am slightly confused by this maths

i need to calculate
wk=uk o (L-Psi)
where
uk=a vector of size (1 X N^2)
o =scalar product
l,Psi=vectors of (N^2 X 1)

i have an ndarray U of shape(M X N^2)where uk is one of the rows , and
L of shape (M X N^2) where l.transpose() is one of the rows,
If i were to apply the above formula how can i find the matrix where
wk is an element.? I know i have to use dot() but the rest i am
finding a bit confusing
can someone please help?
harryos