A mathematical function is a formula that takes an input, x, applies a set of calculations to it, and produces an output called y. By calculating a function at a large number of set intervals, it is ...

Anyone who’s taken classes in geometry, algebra, trigonometry or other advanced math forms has certainly encountered the graphing calculator before. These multi-function devices make incredibly ...

Steven Musil is a senior news editor at CNET News. He's been hooked on tech since learning BASIC in the late '70s. When not cleaning up after his daughter and son, Steven can be found pedaling around ...