My first thoughts as to how to approach this problem is to import
excel data.

Here is an example of a similar problem:

I have an excel table with multiples of 10 on the X axis. If the user
inputs an existing X value in the table (10, 20, 30) how do I make a
function return the Y value?

Further, how do I make the procedure 'find' values for non existant X
values? (15, 23, 34) Can I make a function in excel and import it
into vb.net, and have the X values pass through it? Maybe it can
average "between" values?

I hope this is clear, thanks for your time.

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Joe,

Do you want to import an Excel file or do you want to keep dynamicly eye on
what the user is doing?

Cor

Excel was my first guess as how to do this. I want the data to be
accessed, where a user can give a value, and the program finds the
corresponding Y value.

Does that clarify anything?

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