Conversion exponential expression to hyperbolic equivalent one



I want maxima to convert exponential expression to hyperbolic one. How
can I do that? I tried demoivre but it converts exponential to
trigonometric but not to hyperbolic.

Thank you everyone who will get around to write a reply.
-- 
Cuneyt Ertal
Research Assistant
Istanbul University
Engineering Faculty
Mechanical Engineering Department
Phone : 0 212 473 70 70-17551
Fax : +90 212 473 71 80