Kode Program Pembuatan Sederhana Kalkulator C#
using System ; namespace Calculator { class Calculator { public static double DoOperation ( double num1 , double num2 , string op ) { double result = double . NaN ; // Default value is "not-a-number" which we use if an operation, such as division, could result in an error. // Use a switch statement to do the math. switch ( op ) { case "a" : result = num1 + num2 ; break ; case "s" : result = num1 - n...