No it's not. i is a number such that i^2 = -1 by definition. | Hacker News

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		friendlyfrog on Sept 21, 2012 \| parent \| context \| favorite \| on: What are imaginary numbers? No it's not. i is a number such that i^2 = -1 by definition.

gizmo686 on Sept 22, 2012 [–]

And in some contexts -1 is rotating by 180 degrees, which happens to be 290, or i*i.

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