In the beginning, there was GraphCalc. It was free, and things were good. Then we, the authors, started incurring many expenses. We asked for donations, but didn't receive enough to cover our costs.
So, it is with a sad heart that we must declare GraphCalc as shareware. If you use GraphCalc for more than 30 days you must register the software. It's just $10. So please consider supporting us.
You can either use a major credit card to order (see form below), or send check or money order for $10 to:
Lewisburg, PA 17837