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[Steven D'Aprano]

On Fri, 12 Jul 2013 23:01:47 +0100, Joshua Landau wrote:

> Isn't a superscript "c" the symbol for radians?


Only in the sense that a superscript "o" is the symbol for degrees.

Semantically, both degree-sign and radian-sign are different "things" 
than merely an o or c in superscript.

Nevertheless, in mathematics at least, it is normal to leave out the 
radian sign when talking about angles. By default, "1.2" means "1.2 
radians", not "1.2 degrees".


-- 
Steven