The Square Root Of -15 Has Been Described As Useless

The Square Root Of -15 Has Been Described As Useless

The square root of negative fifteen has been described as useless, namely by the mathematician who discovered it. But this number, and other imaginary numbers, aren't totally useless, they're just misunderstood. When this square root was discovered, mathematicians just didn't understand the potential for imaginary numbers. Learn the whole story, and why they aren't useless, in the video below.

The Useless Number

It only seemed useless because it was misunderstood.

07:42

An Introduction To Imaginary Numbers

In case you need to freshen up.

06:36

What Is a Friedman Number?

25 is one of them.

08:11
See all

Math

Dinosaurs

Gender

Music

Get smarter every day! Like us on Facebook.
You'll get the most interesting and engaging topics in your feed, straight from our team of experts.