complx.IsInf() Function in Golang With Examples

complx.IsInf() Function in Golang reports whether either real(x) or imag(x) is an infinity. The returned value is boolean.

Syntax:

func IsInf(x complex128) bool

Here, x is the set of all complex numbers with float64 real as well as imaginary parts.

Return Value: This returns a boolean value, either true or false.

Example 1: This example checks whether 1+5i is infinity or not.

// Golang program to illustrate
// the complx.IsInf() Function

package main

// importing fmt and math/cmplx
import (
    "fmt"
    "math/cmplx"
)

// Calling Main()
func main() {

        // creating a complex number 1 + 5i
    infy := complex(1, 5)

    // checking if it is infinity or not?
    fmt.Printf("%t", cmplx.IsInf(infy))
}

Output:

false

Example 2: This example verifies that the var infy is infinite or not.

// Golang program to illustrate
// the complx.IsInf() Function

package main

// importing fmt and math/cmplx
import (
    "fmt"
    "math"
    "math/cmplx"
)

// Calling Main method
func main() {
    // creating infinity variable.
    inf := math.Inf(1)

    // creating infinity complex
    // number i.e. (INF + INFi)
    infy := complex(inf, inf)
    // checking if it is infinity.
    fmt.Printf("%t", cmplx.IsInf(infy))
}

Output:

true