Pie charts help people display complex data in a colorful, organized and compact way. Microsoft Word comes with several pie charts that you can fill with data manually. Manual data entry is fine, but ...

A parabola is a curved line with particular characteristics. Any point on the curve is the same distance from a fixed point and a fixed straight line. The result looks like half of an ellipse or the ...

Roula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter. If you want to sow division among chartmakers, ask them if pie charts are a good idea. If you want to raise a ...