a: imaginary numbers ~
b: 90-degree rotation
What:
"Imaginary numbers let us rotate numbers. Don't start by defining i as the square root of -1. Show how if negative numbers represent a 180-degree rotation, imaginary numbers represent a 90-degree one."
Useful?
Writer: Not Stated
LCC:
Where:
Date: Jun 25 2017 12:22 PM
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