I use almost everyday

Its a great graphic calc. I downloaded several, and found this has shown full-fledged graphic calc. Updated edition offer 3-D graph, too. But, please give us a choice to draw graphs in a fine curve, which I miss because the first edition offered(?) I need to see a finer detail, for instance, a difference between arctan and arcsin, etc.

T. Tide about Good Grapher Pro - scientific graphing calculator