h-length as part of a complex number (page 3)

θ = 2.617993 (150°)
h-length of BA, relative to 0, is .143841

e^{hlength + iθ} = C > (when θ is between π/2 and π)
e^{hlength - iθ} = C₂ (when θ is between π/2 and π)

If the θ is greater than π/2, the h-length could be thought of as being measured, relative to O, along the line x = -1, from B to infinity, and back along the line x = 1, from infinity to C₂.