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A comment on What are imaginary numbers?. Parent comment

Re:What are imaginary numbers? by friendlyfrog on Friday September 21, 2012 @01:30PM (#4554725)
No it's not. i is a number such that i^2 = -1 by definition.
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Re:What are imaginary numbers? by gizmo686 on Saturday September 22, 2012 @03:07AM (#4557315)
And in some contexts -1 is rotating by 180 degrees, which happens to be 290, or i*i.
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