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Jul 27 at 13:31 history edited Alexandre Eremenko CC BY-SA 4.0
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Jul 27 at 13:31 comment added Alexandre Eremenko @Michael Lugo: sorry for the stupid mistake, I corrected. It does not change the argument.
Jul 26 at 18:13 comment added Michael Lugo That's the fixed point if you're measuring angles in degrees, but surely it's more usual to measure angles in radians here?
Jul 26 at 14:55 history answered Alexandre Eremenko CC BY-SA 4.0