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).

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). Aim ...

Give an example of a function with one critical point which is also an inflection point. You must provide the equation of your function. Give an example of a function that satisfies \(f(-1)=f(1)=0\) ...

Bar graphs seem like one of the simplest ways to represent data. Many people assume that the longer the bar, the bigger the number it represents. Sometimes bar graphs represent an average not a total ...

Most people know Paper by FiftyThree as the best sketching app for iPad, but what if you're not an artist? To make sure anyone can put together a professional-looking chart, model, or graph, Paper is ...

FiftyThree, the New York-based company behind a popular drawing app and accompanying smart stylus, has revealed its next steps to infiltrate the potentially lucrative enterprise realm: a new set of ...

Cyril Julie receives funding from the National Research Foundation. In the modern world of work, most computations are done using technology. In contrast, in South Africa, school maths computations ...

Changing a tire at the side of the road is no big deal (you know that the tire-iron is for removing the wheel-nuts and not just for self defense, right?), but suffering a blowout on the freeway isn't ...

SCHOOLBOY Ruaraidh Martin can draw pictures on his skin using just his finger — like an amazing human Etch A Sketch. The images are caused by a rare medical condition and last half an hour before ...