User defined function

awk '
    # Returns minimum number
    function find\_min(num1, num2){
       if (num1 < num2)
       return num1
       return num2
    }
    # Returns maximum number
    function find\_max(num1, num2){
       if (num1 > num2)
       return num1
       return num2
    }
    # Main function
    function main(num1, num2){
       result = find\_min(num1, num2)
       print "Minimum =", result

       result = find\_max(num1, num2)
       print "Maximum =", result
    }
    # Script execution starts here
    BEGIN {
       main(10, 60)
    }
'