gocal.go

package main

//importing fmt package for basic functions
import "fmt"

//declaration of variables
var num1 float32
var num2 float32
var operator string


//declaration of functions
func add(a float32, b float32)float32{
  return a+b
}

func substract(a float32, b float32)float32{
  return a-b
}

func multiply(a float32, b float32)float32{
  return a*b
}

func divide(a float32, b float32)float32{
  return a/b
}

//main function
func main(){


fmt.Print("Enter No 1: ")
fmt.Scanln(&num1)

fmt.Print("Enter No 2: ")
fmt.Scanln(&num2)

fmt.Print("Enter operator: ")
fmt.Scanln(&operator)

if (operator == "+"){
  fmt.Print("Your answer is: ")
  fmt.Println(add(num1,num2))
  fmt.Println("\n")

}else if (operator == "-"){
  fmt.Print("Your answer is: ")
  fmt.Println(substract(num1,num2))
  fmt.Println("\n")

}else if (operator == "*"){
  fmt.Print("Your answer is: ")
  fmt.Println(multiply(num1,num2))
  fmt.Println("\n")

}else if (operator == "/"){
  fmt.Print("Your answer is: ")
  fmt.Println(divide(num1,num2))
  fmt.Println("\n")
}

}