grad

(./FEM/grad.m)

Function Synopsis

gr=grad(e,x,y,q)

Help text

 GRAD - Compute the gradient of a FEM 2-D scalar field

        GRAD(e,x,y,s) computes the divergence of a 2-D 
        scalar field (s) over the FEM domain specified by the 
        element list (e) and the corresponding horizontal node
        coordinates (x,y).  The result is a 2-D vector field
        returned to the workspace. 

        Call as: gd=grad(e,x,y,s);

        All arguments are REQUIRED.

        Written by:
        Brian O. Blanton
        Curr. in Marine Science
        15-1A Venable Hall
        CB# 3300
        Uni. of North Carolina
        Chapel Hill, NC
                 27599-3300

        919-962-4466
        blanton@marine.unc.edu