acoth
acoth(X) returns the inverse hyperbolic cotangent for each element of X.
Examples
> x = (1:0.2:10)' [x:46x1 double] > plot([-x x], [acoth(-x) acoth(x)], struct('colors', {'blue'})) [ans:1x1 struct]
> x = (1:0.2:10)' [x:46x1 double] > plot([-x x], [acoth(-x) acoth(x)], struct('colors', {'blue'})) [ans:1x1 struct]