Mathematicians once turned up their noses at imaginary numbers. But complex analysis actually simplifies math and physics.

Euler's formula and Mobius strip. [Photo by Jiang Dong/China Daily] They are enthralled by the minimalist beauty of math formulas and also the mysteriousness, which are both visualized in the ...

With decent algebra skills, you can manipulate Euler's formula to see that most of the ... play a role in understanding all ...