Go Continue Statement Go Goto Statement Go Map Go Scope Rules Go Loops Go Nested Loops Go Break Statement Go Function Call By Reference Go Fmt Sprintf Go Program Structure Go Nested If Statements Go Environment Go Function Call By Value Go For Loop Go Function As Values Go If Else Statement Go Switch Statement Go If Statement Go Concurrent Go Structures Go Tutorial Go Variables Go Passing Pointers To Functions Go Recursion Go Error Handling Go Basic Syntax Go Passing Arrays To Functions Go Multi Dimensional Arrays Go Method Go Operators Go Type Casting Go Pointers Go Constants Go Arrays Go Pointer To Pointer Go Ide Go Decision Making Go Select Statement Go Interfaces Go Functions Go Array Of Pointers Go Data Types Go Fmt Printf Go Function Closures Go Range Go Slice

package main

import (
   "fmt"
   "math"
)

func main(){
   /* Declare function variable */
   getSquareRoot := func(x float64) float64 {
      return math.Sqrt(x)
   }

   /* Use the function */
   fmt.Println(getSquareRoot(9))

}

3