Log2() function is used to find the binary logarithm of the given input (x – parameter) in Go language. The standard math package of Go programming language has Log2() function.
Syntax of Log2() Function in Go Language
The syntax of Log2() function in Go Language is:
1 | func Log2(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 Log2() 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) Log2() 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 Log2() Function in Go Language
Log2() function will return the binary logarithm of the given input(x – parameters).
GoLang Log2() Function Example 1
1 2 3 4 5 6 7 8 9 10 | package main import "fmt" import "math" func main() { var x float64 x = math.Log2(-2.44) fmt.Println(x) } |
Output:
NaN
GoLang Log2() Function Example 2
1 2 3 4 5 6 7 8 9 10 | package main import "fmt" import "math" func main() { var x float64 x = math.Log2(6.86) fmt.Println(x) } |
Output:
2.7782085763980877
GoLang Log2() Function Example 3
1 2 3 4 5 6 7 8 9 10 | package main import "fmt" import "math" func main() { var x float64 x = math.Log2(4) fmt.Println(x) } |
Output:
2
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