Timeline for Do complex numbers really exist?
Current License: CC BY-SA 2.5
5 events
| when toggle format | what | by | license | comment | |
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| Apr 15, 2011 at 20:45 | history | made wiki | Post Made Community Wiki | ||
| Jul 20, 2010 at 23:08 | comment | added | Jonathan Fischoff | You can use normal geometry, you just have to add the idea of front and back, or alternatively clockwise and counter-clockwise. One way to prime the pump of understanding, is think how rotating something by 90 degrees twice gives -1. So rotate^2 = -1. i is like a 90 degree rotation. | |
| Jul 20, 2010 at 22:54 | comment | added | Neil Mayhew | When I've used this explanation with people, they want to know why you can't just use normal geometry, which doesn't involve the concept of a negative square root. | |
| Jul 20, 2010 at 22:52 | history | edited | Jonathan Fischoff | CC BY-SA 2.5 | added 1 characters in body |
| Jul 20, 2010 at 22:40 | history | answered | Jonathan Fischoff | CC BY-SA 2.5 |