👉 Learn how to find the derivative of a function using the chain rule. The derivative of a function, y = f(x), is the measure of the rate of change of the function, y, with respect to the variable x.

When was the last time you had to put pen to paper and solve an equation like you used to at school? A simple-looking sum was posted to X this week by Break the Silos, that has left self-proclaimed ...

About 10,000 writers including Kazuo Ishiguro, Philippa Gregory and Richard Osman join copyright campaign Thousands of authors including Kazuo Ishiguro, Philippa Gregory and Richard Osman have ...

Roula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter. AI is reshaping how the US military makes decisions in war — a shift clear in Iran, where the Pentagon says it ...

This blog has now closed – our live coverage of the Middle East crisis continues here Follow live for latest news and updates in the Middle East crisis This blog has now closed – our ongoing live ...

Jennifer Simonson is a business journalist with a decade of experience covering entrepreneurship and small business. Drawing on her background as a founder of multiple startups, she writes for Forbes ...

Much of professional and personal success depends on persuading others to recognize your value. You have to do this when you apply for jobs, ask for promotions, vie for leadership positions, or write ...

Whether any mines had been laid in the Strait of Hormuz since the war began on Feb. 28 is unclear. The Pentagon said 140 American service members had been wounded, eight severely, in the war.