I currently have the following, which of course breaks down once you hit the
limit of 29 arguments in a user defined function:

In the Worksheet:
=Newton(B11,B12,B13,B14,B15,B16,B17,B18,B19,B20,B2 1,B22,B23,
B24,B25,B26,B27,B28,B29,B30,B31,B32,B33,B34,B35,B3 6,B37,B38,
B39,B38)

In VB:
Function Newton(P, n, F, A1, m1, A2, m2, A3, m3, A4,m4, A5,m5,A6, m6,
A7, m7, A8, m8, A9, m9, A10,m10, A11, m11, A12, m12, A13, m13, iannual)

To redesign, I have:

In the Worksheet:
=Newton(B11:B39,B8)

In VB:
Function Newton(.......?)
??

Any help here to make this work is appreciated. I can't seem to ge this to
work.

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Thanks for any help