Inverse Hyperbolic Cotangent function plot (Arc hyperbolic cotangent, arccoth)
arcoth(x) = ln((x + 1) / (x - 1)) / 2
Plotted with cubic bezier-curves. The bezier-controll-points are calculated to give a very accurate result.
Asymptotes are included but commented out.

Symbols are embeded in "Computer Modern" (TeX) font.
Own work
Geek3