I connected your code into a program that I'd written around Erel's Eval routine. Your code breathes new life into it. Allowing the user to select a range of x values & uses your routines to populate a table based on the formula entered into a text box. The user can then display the table in one of 3 graph formats. Thanks again for the work you did in creating the expression calculator. I only needed to change one thing & that was to reset the 'C' variable after a calculation so that it would accept modified variables thereafter.
Cheers!!
