Euler’s number e is a mathematical constant that begins with 2.71828. Just like pi (π), it is non-terminating, which means it goes on and on. It is also an irrational number, ...

Euler’s constant explains so much about math and physics. We delve into the number e, or Euler’s number, to find out why it’s so special.

Then there is e, or Euler’s number: a mathematical constant found across fields from quantum mechanics to finance to zoology. As a number itself, it might not look like much.

The constant ‘e’ February offers another blockbuster constant, Euler’s number e, which has the value 2.718…. So mark next Feb. 7 for the shindig. To understand e, consider “doubling” growth again, but ...

Get ready for a math-themed celebration today, because July 22 marks Pi Approximation Day. On this day, we celebrate all things related to the mathematical constant.

Pi is a "constant number" and will always remain the same for any circle of any size. Pi can be calculated to more than 50 trillion digits beyond its decimal point.

The constant e is a big part of calculus – and turns up in all kinds of natural phenomena. Next on our calendar of mathematical constants would come pi, of course, for March.