Swift - log10() Function
The Swift log10() function returns the base-10 logarithm of a given number.
Syntax
In Foundation framework, it is defined as follows:
public func log10(_ x: CGFloat) -> CGFloat public func log10(_ x: Float) -> Float public func log10(_ x: Float80) -> Float80 public func log10(_ __x: Double) -> Double
Parameters
x |
Specify the number. |
Return Value
Returns the base-10 logarithm of a given number.
If the x is negative, it returns nan.
If the x is 0, it returns -inf.
Example:
In the example below, log10() function is used to calculate the base-10 logarithm of a given number.
import Foundation
print("log10(0.0) = \(log10(0.0))")
print("log10(1.0) = \(log10(1.0))")
print("log10(10.0) = \(log10(10.0))")
print("log10(50.0) = \(log10(50.0))")
print("log10(-1.0) = \(log10(-1.0))")
The output of the above code will be:
log10(0.0) = -inf log10(1.0) = 0.0 log10(10.0) = 1.0 log10(50.0) = 1.6989700043360187 log10(-1.0) = nan
❮ Swift Math Functions
