Returns the hyperbolic tangent of the given angle.
HTAN(Angle)
Angle is the angle in radians for which you want the hyperbolic tangent.
Formula

Description 
=HTAN(1.047)  Hyperbolic
tangent of 1.047 radians 
=HTAN(60*PI()/180)  Hyperbolic
tangent of 60 degrees (0.5) 
=HTAN(RADIANS(60))  Hyperbolic
tangent of 60 degrees (0.5) 