Log()
function is used to find the natural logarithm of the given input (x
– parameter) in Go language. The standard math package of Go programming language has Log()
function.
Syntax of Log()
Function in Go Language
The syntax of Log()
function in Go Language is:
func Log(x float64) float64
Note: float64
is a data type in Go language which has IEEE-754 64-bit floating-point numbers.
Special cases are:
Log(+Inf) = +Inf
Log(0) = -Inf
Log(x < 0) = NaN
Log(NaN) = NaN
Parameters of Log()
Function in Go Language
x
– Where x
is any Valid float64
Input value. This parameter is required.
Error Handling
If the
If there is no argument (
x
parameter is not a number (numeric value) Log()
function returns an error
.If there is no argument (
x
– input value) passes to the function, then the compiler will produce an error
.
Return Value of Log()
Function in Go Language
Log()
function will return the natural logarithm of the given input(x
– parameters).
GoLang Log()
Function Example 1
package main import "fmt" import "math" func main() { var x float64 x = math.Log(-5.39) fmt.Println(x) }
Output:
NaN
GoLang Log()
Function Example 2
package main import "fmt" import "math" func main() { var x float64 x = math.Log(13.476) fmt.Println(x) }
Output:
2.6009103255443065
GoLang Log()
Function Example 3
package main import "fmt" import "math" func main() { var x float64 x = math.Log(97) fmt.Println(x) }
Output:
4.574710978503383