Question

For example If the user gives input as a + b, process should be done as adding two variables that has been already declared as int a, int b

int a = 7;
int b = 8;
string formula = console.readline();

this is where I need Help if the user types a + b as formula we should addition on that a and b, User can use any binary operator, formula should get that operator from user input, Please help

Answer 1

You could do like this:

int a = 7;
int b = 8;
string formula = "a+b";
formula=formula.Replace("a",a.ToString()).Replace("b",b.ToString());

var calc = new System.Data.DataTable();
Console.WriteLine(calc.Compute(formula, ""));