HP 35s Scientific Calculator - Manual (Page 314)

C-6 ALG: Summary
Trigonometric Functions
Assume the unit of the angle is
9
()
Hyperbolic functions
To Calculate: Press: Display:
Sine of x.  

Cosine of x.  

Tangent of x.  

Arc sine of x. 



Arc cosine of x. 



Arc tangent of x. 



To Calculate: Press:
Hyperbolic sine of x (SINH).    ,key in a number, 
press 
Hyperbolic cosine of x (COSH).    , key in a
number,  press 
Hyperbolic tangent of x (TANH).    , key in a number, 
press 
Hyperbolic arc sine of x (ASINH).    , key in a
number,  press 
Hyperbolic arc cosine of x (ACOSH).    , key in a
number,  press 
Hyperbolic arc tangent of x (ATANH).    , key in a
number,  press 