Like textbooks, graphing calculators are ... Now, an open-source calculator called Numworks is taking them on with a clean, simple look, an intuitive interface and open source programming and ...

Python allows free creation of plots, unlike expensive, stagnant graphing calculators. Import NumPy and Matplotlib for basic ...

One of the killer features of the Desmos Whiteboard is an interactive calculator that graphs equations as you write them. (Founder Eli Luberoff was a double math and physics major at Yale).

[Photo: Christopher Mitchell] A quick show of hands: How many of you used a graphing calculator in school? Now, how many of you used it more to play games than to solve problems? If you still ...