4 ms·
The title statement is meaningless. "Imaginary numbers" are not "multiply" by "90°". What does it even mean to "multiply" by an angle? Correct statement: "*i i
by fchollet 14y ago
The title statement is meaningless. "Imaginary numbers" are not "multiply" by "90°". What does it even mean to "multiply" by an angle?
Correct statement: "*i is equivalent to a 90° rotation in some contexts." Which is kind of obvious to anybody who has done some maths or physics at some point?
- deleted 14y ago[deleted]
- walrus 14y agoTrivially, this result is clearly obvious.
- Tipzntrix 14y agoI swear the only time I ever heard trivial in a lecture was once I got into university. It's a whole new ball game; high school teachers wouldn't dare say trivial just in case they had someone who was behind.
- friendlyfrog 14y agoNo it's not. i is a number such that i^2 = -1 by definition.
- gizmo686 14y agoAnd in some contexts -1 is rotating by 180 degrees, which happens to be 290, or i*i.