3 ms·

Yes, which means "a half turn around the unit circle in the complex plane is -1". Try explaining that in words without saying "half" or something equivalent to

Yes, which means "a half turn around the unit circle in the complex plane is -1". Try explaining that in words without saying "half" or something equivalent to it.

tomp 12y ago
Opposite of 1 on the unit circle in the complex plane is -1. Pi just means "enough of a turn to get back to the straight line".
- sukilot 12y ago
  That's ambiguous. Which straight line? Forwards or backwards? It's a half-turn.
- stouset 12y ago
  You mean a vector in the opposite direction. Clear as mud.