public string Calculate(string left, string right, string opName)
{
IBinaryOperation <double> operation = null;
try
{
operation = _operations.First(op => op.Name == opName);
}
catch (Exception e)
{
Console.WriteLine(e);
throw new InvalidOperationException("Unsupported operation");
}
operation.Parse(left.Replace(',', '.'), right.Replace(',', '.'));
return(operation.Compute().ToString(CultureInfo.InvariantCulture));
}
