Sort of a school project, basically I need to sum the following equation:

k goes from 0 to 100 ( A^( k+1 ) ) * ( B / C ) * ( 1 - ( D / E ) )

where A, B, C, D, E are all cell references that increase by k each time for
the sumation, but there is no way to find a funtion, so I think I have to
make a loop in VBA, but I don't really know how to use my reference cells.
Ultimately I would like to call a function like this: =Sum3up( array1,
array2, array3, integer ) where the 3 arrays are my colums or rows, and my
integer is the value of k.

Not much of a program but if I get pointed in the right way I can figure
most things out, once I get a nudge.

Clinton