tanh(z)
Returns the hyperbolic tangent of z, where z is given in radians
CMath.tanh(1 + 1i) #=> (1.0839233273386943+0.27175258531951174i)
# File lib/cmath.rb, line 249 def tanh(z) begin if z.real? RealMath.tanh(z) else sinh(z) / cosh(z) end rescue NoMethodError handle_no_method_error end end
