BSW Math 
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Solution of General Partial Differential Equations 
This script gives the numirical solution of PDE of the form a1*Uxx + a2*Uyy + a3*Uxy + a4*Ux+ a5*Uy + a6*U=f(x,y) where a1,a2,a3,a4,a5 and a6 are functions on x and y or constants. The solustion is carried by SOR iteration method 
This is an example for output data in graph mode of boundary value problem Δ U(x,y)==x*y, U(x,y)=0 at all boundaries. 
