Finding the Sine of Complex Number in Golang

Copy the Sign of Given Number in Golang

Last Updated : 01 Apr, 2020

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 are allowed to copy the sign of the specified number with the help of Copysign() 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 Copysign() function. Syntax:

func Copysign(a, b float64) float64

Here, this function returns a value with the magnitude of a and the sign of b. Example 1:

C

// Golang program to illustrate how to
// copy the sign of the given number

package main

import (
    "fmt"
    "math"
)

// Main function
func main() {

    // Copying the sign of the
    // given numbers
    // Using Copysign() function
    res_1 := math.Copysign(2, -3)
    res_2 := math.Copysign(-8, 1)
    res_3 := math.Copysign(-67, -2)

    // Displaying the result
    fmt.Printf("Result 1: %.1f", res_1)
    fmt.Printf("\nResult 2: %.1f", res_2)
    fmt.Printf("\nResult 3: %.1f", res_3)

}

Output:

Result 1: -2.0
Result 2: 8.0
Result 3: -67.0

Example 2:

C

// Golang program to illustrate how to
// copy the sign of the given number

package main

import (
    "fmt"
    "math"
)

// Main function
func main() {

    // Copying the sign of 
    // the given numbers
    // Using Copysign() function
    nvalue_1 := math.Copysign(3, -1)
    nvalue_2 := math.Copysign(-4, 3)
    res := nvalue_1 + nvalue_2
    fmt.Printf("%.1f + %.1f = %.1f",
          nvalue_1, nvalue_2, res)

}

Output:

-3.0 + 4.0 = 1.0

Finding the Sine of Complex Number in Golang

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