>> Yes, I understand that, but what is the geometrical >> meaning of the square root of an arc length? > > That's a different question to your original question, which was asking > about the square root of an angle. > >> And what would the units be? > > Angles are a ratio of two lengths, and are therefore dimensionless units. > So the square root of an angle is just another angle, in the same units, > and it requires no special geometric interpretation: the square root of 25 > degrees (just an angle) is 5 degrees (just another angle).
But sqrt(25°) = sqrt(25/180*pi) = 5*sqrt(180/pi) != 5° Leonhard -- http://mail.python.org/mailman/listinfo/python-list