d_ds(7)
NAME
d_ds -- Curvilinear derivative
SYNOPSIS
form(const space& V, const space& W, "d_ds");
DESCRIPTION
Assembly the matrix associated to the following integral: @tex $$
m(u,v) = int_Gamma du/ds v ds $$ for all $u in V,v in W$. @end tex
The V and W space may be either a `P0', `P1', `P2', or `P1d' finite
element space for building a form see form(3).