HP Prime Graphing Calculator - Manual (Page 323)

Functions and commands 317
SEC Secant: 1/cosx.
SEC(value)
ASEC Arc secant.
ASEC(value)
COT Cotangent: cosx/sinx.
COT(value)
ACOT Arc cotangent.
ACOT(value)
Hyperbolic
The hyperbolic trigonometry functions can also take complex
numbers as arguments.
SINH Hyperbolic sine.
SINH(value)
ASINH Inverse hyperbolic sine: sinh –1
x .
ASINH(value)
COSH Hyperbolic cosine
COSH(value)
ACOSH Inverse hyperbolic cosine: cosh –1
x .
ACOSH(value)
TANH Hyperbolic tangent.
TANH(value)
ATANH Inverse hyperbolic tangent: tanh –1
x .
ATANH(value)
Probability
Factorial Factorial of a positive integer. For non-integers, x! = (x + 1).
This calculates the gamma function.
value!
Example:
5! returns 120