Swift - acosh() Function
The Swift acosh() function returns inverse hyperbolic cosine of a value. The inverse hyperbolic cosine of x is defined as:
Syntax
In Foundation framework, it is defined as follows:
public func acosh(_ x: CGFloat) -> CGFloat public func acosh(_ x: Float) -> Float public func acosh(_ x: Float80) -> Float80 public func acosh(_ __x: Double) -> Double
Parameters
x |
Specify the value equal to or greater than 1.0. |
Return Value
Returns the inverse hyperbolic cosine of a value.
If the x is less than 1.0, it returns -nan.
Example:
In the example below, acosh() function is used to find out the hyperbolic cosine of a value.
import Foundation
print("acosh(0.0) = \(acosh(0.0))")
print("acosh(2.0) = \(acosh(2.0))")
print("acosh(4.0) = \(acosh(4.0))")
print("acosh(8.0) = \(acosh(8.0))")
The output of the above code will be:
acosh(0.0) = -nan acosh(2.0) = 1.3169578969248166 acosh(4.0) = 2.0634370688955608 acosh(8.0) = 2.7686593833135738
❮ Swift Math Functions
