(I) is imaginary unit

A+I*B= [(C*X1+D*Y1+ E*X2+F*Y2)]+ I*[ (G*X1+H*Y1+ M*X2+J*Y2)] ----

This equation should satisfy several boundary conditions. at each point of these boundary the constant [A, B, C,D,E,F,G,H,M,J] are known.

Number of points of boundaries= Number of equations = (N)

X1,X2,Y1, Y2 are vectors of variables of (M) terms (X1: X11, X12, X13,....X1M; Y1: Y11, Y12, Y13, ...Y1M..etc)

N=2M

Your help needed urgently with much appreciation