Gus and Gertie's Graphin' Gadget - Version 1.1a Gives you a graphing calculator on your Windows-based computer, with a flexible user interface and presentation-quality graphics. Great for classroom, home or computer lab use, G & G is easier to teach, easier to learn and use, and far more affordable than a hardware graphing calculator. Includes built-in demos of some neat applications, including some that animate graphs. Site licenses and volume discounts are available (teachers, see our site to request a free review copy for possible volume purchase).