4 ms·

Angle is a dimension, and not equivalent to length. Fight me (and Matlab).

• HPsquared 4y ago
  Angle in radians is just (length of arc) / (radius). That is length/length, which cancel out - so angle is dimensionless. Solid angle is area/area.
  • nh23423fefe 4y ago
    another way: if exp(x) implies x dimensionless then by euler identity sin and cos parameters are dimensionless as well.