cosh(Decimal)

Returns the hyperbolic cosine of a number in radians. Decimal arguments are rounded to double precision before function application.

Examples: cosh(2.3) = 5.037220649268761

Argument type	Result
Int	Decimal (with double precision), the hyperbolic cosine of the argument. Imaginary results are returned as Undefined.
Decimal	Decimal (with double precision), the hyperbolic cosine of the argument. Imaginary results are returned as Undefined.
Boolean	Undefined.
String	Decimal (with double precision), the hyperbolic cosine of the argument. If the string cannot be converted to a Decimal, the result is Undefined. Imaginary results are returned as Undefined.
Array	Undefined.
Object	Undefined.
Null	Undefined.
Undefined	Undefined.