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math.NaN() Function in Golang With Examples

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Go language provides inbuilt support for basic constants and mathematical functions to perform operations on the numbers with the help of the math package. You get an IEEE 754 “not-a-number” value with the help of NaN() function provided by the math package. So, you need to add a math package in your program with the help of the import keyword to access the NaN() function.

Syntax:

func NaN() float64

Example 1:




// Golang program to illustrate math.NaN() Function
  
package main
  
import (
    "fmt"
    "math"
)
  
// Main function
func main() {
  
    // Getting Not-a-number value
    // Using NaN() function
    res := math.NaN()
  
    // Displaying the result
    fmt.Println("Result: ", res)
  
}


Output:

Result:  NaN

Example 2:




// Golang program to illustrate math.NaN() Function
  
package main
  
import (
    "fmt"
    "math"
)
  
// Main function
func main() {
   
    // Checking whether the given 
    // value is not-a-number or not
    // Using NaN() function
    nvalue := math.NaN()
    if nvalue == math.NaN() {
        fmt.Println("Given value is not-a-number")
    } else {
        fmt.Println("Given value is not a not-a-number")
    }
  
}


Output:

Given value is not a not-a-number


Last Updated : 13 Apr, 2020
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