Welcome to a city where pi equals 4 and circles aren’t round. By Steven Strogatz Photo illustrations by Jens Mortensen Each installment of “Math, Revealed” starts with an object, uncovers ...

What is the difference between a horizontal and vertical line? Learn how to identify vertical, horizontal, parallel and perpendicular lines.

An old calculator uses a seven-segment display, in which numerals are represented by different patterns of vertical and horizontal line segments. But the device is faulty and no longer shows any ...

Nobel laureate Richard Feynman called it “the most remarkable formula in mathematics”. Why did the visitor write Euler’s identity, and what links it to James Joyce?

The Line - World’s First Vertical City The Line is the name of the world’s first vertical city that Mohammed bin Salman bin Abdulaziz envisions, the crown prince of Saudi Arabia.

Google extends repair program for Pixel 8 phones plagued by a pink vertical line The fix for the screen anomaly covers the regular Pixel 8 for up to three years from purchase, but not the 8 Pro.

What is the difference between a horizontal and vertical line? Learn how to identify vertical, horizontal, parallel and perpendicular lines.