Manuals/calci/ACOSH

ACOSH(z)

• where z is any real number

Description

• This function gives the Inverse Hyperbolic Cosine of a number.
• Here 'z' is any positive real number i.e, $z\geq 1$.
• Inverse Hyperbolic sine of a number is defined by $Acosh(z)=\log _{e}(z+{\sqrt {z^{2}-1}})$
• Also ACOSH(COSH(z))=z
• ACOSH(-2)=NAN , since z<1

Examples

ACOSH(z)

• z is any positive real number.

ACOSH(z)	Value
ACOSH(1)	0
ACOSH(30)	4.0940666863209
ACOSH(90)	5.192925985263806

See Also

• COS
• COSH
• ACOS
• DCOS

References

• List of Trigonometric Functions
• Hyperbolic Function