Plotting a graph takes time. Often mathematicians just want to know the key features. These are: shape, location and some key points (such as where the graph crosses the axes or turning points).

This is a true artifact of gaming history. The notebook of Toru Iwatani, creator of Pac-Man, complete with sketched-out pixel art, prototype mazes, and ghost movements. My god! Remember when you could ...

These are the graph paper sketches that became 'Super Mario Bros.' Looking at the technological wonders emerging from this year's Electronic Entertainment Expo, it's hard to imagine that, not very ...

Express the polar equation \(r=\cos 2\theta\) in rectangular coordinates. Find the maximum height above the \(x\)-axis of the cardioid \(r=1+\cos \theta\text{.}\) Sketch the graph of the curve whose ...