At some point in his life, Donald Trump looked at a world map and saw something he wants – something that, as president of the US, he now says he will take “one way or the other.” It’s Greenland, an ...

By working through example problems you can build your confidence ... a line of best fit it should be a straight line or smooth curve passing through as many points as possible.

Jeremy Workman’s documentary looks back at a project that may sound like a joke but had serious underpinnings. By Alissa Wilkinson Jason Statham plays a construction worker who’s as deft at ...

Practising questions will help you to prepare for your maths exam. By working through example problems, you can build your confidence and sharpen your understanding of key topics including algebra ...

This file was inspired by list-comprehension-demos skin(): The profiles can be specified either as a list of 3d curves or they can be specified as 2d curves with heights given in the z parameter. It ...

The term "involute" refers to the shape of the teeth: the curves of the teeth are involutes of circles ... The pressure angle is the angle the tooth makes with the pitch circle. In this example, the ...

The sudden withdrawal of almost half of global funding for nutrition suddenly will have dire consequences for decades.

The NDVI anomalies are produced from data from the AVHRR instrument carried by the series of polar orbiting satellites operated by ... water bodies or areas where no data is available due, for example ...