The president likes to cite specific numbers to bolster his claims. They are often wildly improbable — or just impossible.

If you have ever read advanced textbooks or papers about electronics, you may have been surprised to see the use of complex numbers used in the analysis of AC circuits. A complex number has two ...

Imaginary numbers could play a more important role in describing reality than we thought.

Imaginary numbers might seem like unicorns and goblins — interesting but irrelevant to reality. But for describing matter at its roots, imaginary numbers turn out to be essential. They seem to ...

Imaginary numbers were once seen as impossible, but they became essential tools in solving real mathematical problems.