2.8.1Functions

acosh

Returns the hyperbolic cosine of the argument.

acosh()

Return	The inverse hyperbolic cosine of the argument.
Raise	MathError If the argument is out of domain.

The function may raise an error if the value cannot be computed because of a domain or overflow error.

asinh

Returns the hyperbolic sine of the argument.

asinh()

Return	The inverse hyperbolic sine of the argument.
Raise	MathError If the argument is out of domain.

The function may raise an error if the value cannot be computed because of a domain or overflow error.

atanh

Returns the hyperbolic tangent of the argument.

atanh()

Return	The inverse hyperbolic tangent of the argument.
Raise	MathError If the argument is out of domain.

The function may raise an error if the value cannot be computed because of a domain or overflow error.

cosh

Returns the hyperbolic cosine of the argument.

cosh()

Return	The hyperbolic cosine of the argument.
Raise	MathError If the argument is out of domain.

The function may raise an error if the value cannot be computed because of a domain or overflow error.

cotan

Returns the cotangent of the argument.

cotan()

Return	The reciprocal of the tangent ( 1 / tan() ) of the argument.
Raise	MathError If the argument is out of domain.

The function may raise an error if the value cannot be computed because of a domain or overflow error.

csc

Returns the cosecant of the argument.

csc()

Return	The coseant ( 1 / sin() ) of the argument.
Raise	MathError If the argument is out of domain.

The function may raise an error if the value cannot be computed because of a domain or overflow error.

lambda

Returns the lambda of two arguments.

lambda()

Return	The lambda which is arg1 raised to itself, raised to arg2 - 1.
Raise	MathError If the value is to large.

The function may raise an error if the value cannot be computed because of an overflow error.

sec

Returns the secant of the argument.

sec()

Return	The reciprocal cosine ( 1 / cos() ) of the argument.
Raise	MathError If the argument is out of domain.

The function may raise an error if the value cannot be computed because of a domain or overflow error.

sinh

Returns the hyperbolic sine of the argument.

sinh()

Return	The hyperbolic sine of the argument.
Raise	MathError If the argument is out of domain.

The function may raise an error if the value cannot be computed because of a domain or overflow error.

tanh

Returns the hyperbolic tangent of the argument.

tanh()

Return	The hyperbolic tangent of the argument.
Raise	MathError If the argument is out of domain.

The function may raise an error if the value cannot be computed because of a domain or overflow error.