This article is adapted from an edition of our Off the Charts newsletter originally published in March 2021. It is being published to commemorate five years of Off the Charts—a weekly, subscriber-only ...

For a long while, digital single-lens reflex (DSLR) cameras were the king of the castle for professional and amateur ...

Plenty of our childhoods had at least one math teacher who made the (ultimately erroneous) claim that we needed to learn to do math because we wouldn’t always have a calculator in our ...

Stocks: Real-time U.S. stock quotes reflect trades reported through Nasdaq only; comprehensive quotes and volume reflect trading in all markets and are delayed at least 15 minutes. International stock ...

Learn how to create contour plots in Python using NumPy’s meshgrid and Matplotlib. This step-by-step tutorial shows you how to generate grids, compute functions over them, and visualize data ...