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

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 ...

[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 ...