You will have to calulate the various functions in separate columns, then
use INDIRECT to reference the desired column.
See example: http://cjoint.com/?dqi70Wzv3V

HTH
--
AP

"Bill Brehm " <<don't want any spam a écrit dans le message de
...
Can I do something like this?

A B
1 =F(A1)
2 =F(A2)
3 =F(A3)
4 etc
5
6
7
8
9
10

and define a function in a cell called F, say maybe =sin(X)? This would
give
me the ability to plot any function I can put in a cell.