public static string Builder(string firstNum, string secondNum, string expression)
{
_expression = expression;
switch (expression)
{
case "addition":
return(Calculations.Addition(num: Convert.ToDouble(firstNum), num2: Convert.ToDouble(secondNum)).ToString());
case "subtraction":
return(Calculations.Subtraction(num: Convert.ToDouble(firstNum), num2: Convert.ToDouble(secondNum)).ToString());
case "multiplication":
return(Calculations.Multiplication(num: Convert.ToDouble(firstNum), num2: Convert.ToDouble(secondNum)).ToString());
case "division":
return(Calculations.Division(num: Convert.ToDouble(firstNum), num2: Convert.ToDouble(secondNum)).ToString());
}
return("Null");
}
private void btnResult_Click(object sender, EventArgs e)
{
try
{
switch (cc.Calculation)
{
case "+":
lblResult.Text = Calculations.Addition(cc.Value, double.Parse(lblResult.Text)).ToString();
break;
case "-":
lblResult.Text = Calculations.Substraction(cc.Value, double.Parse(lblResult.Text)).ToString();
break;
case "×":
lblResult.Text = Calculations.Multiplication(cc.Value, double.Parse(lblResult.Text)).ToString();
break;
case "÷":
lblResult.Text = Calculations.Division(cc.Value, double.Parse(lblResult.Text)).ToString();
break;
case "√":
if (cc.Value >= 0)
{
lblResult.Text = Calculations.SquareRoot(cc.Value).ToString();
}
else
{
MessageBox.Show("You cannot find the square root of a negative number!");
}
break;
case "1/x":
if (cc.Value != 0)
{
lblResult.Text = Calculations.Reciprocal(cc.Value).ToString();
}
else
{
MessageBox.Show("The devisor cannot be 0!");
}
break;
case "x²":
lblResult.Text = Calculations.MathPow(cc.Value, 2).ToString();
break;
case "x³":
lblResult.Text = Calculations.MathPow(cc.Value, 3).ToString();
break;
case "±":
if (cc.Value != 0)
{
lblResult.Text = Calculations.Opposite(cc.Value).ToString();
}
else
{
MessageBox.Show("Try again!");
}
break;
case "%":
lblResult.Text = Calculations.Percent(cc.Value).ToString();
break;
default:
break;
}
cc.Operation = true;
cc.IsDecimalPoint = true;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Message", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
//button +
private void BtnAddition_Click(object sender, RoutedEventArgs e)
{
if (TbInputNumbers.Text != "0")
{
//Progress of the calculation's text
TbCalculationProgress.Text += TbInputNumbers.Text;
//Converting the Current number which is inside the TbInputNumbers TextBlock
CurrentNumber = Convert.ToDouble(TbInputNumbers.Text);
//Adding the Current number to the Memory array, incrementing the Memory array's index counter by one
Calculations.AddToMemory(CurrentNumber);
//if this is inside the program, then the multiple calculation part does not work
//Replacing the CurrentNumber part works more effectively and it is easire to understand
//Calculations.IncrementMemoryIndexByOne();
//Storing the calculation in the result variable (Rounding the result)
//Showing the user the given result in the TbResultmemory textBlock
//Adding the result to the Memory array, incrementing the Memory array's index counter by one
//Setting the UserCanDelete variable to 0
Result = Calculations.Addition();
Math.Round(Result, 10);
TbResultMemory.Text = Result.ToString();
Calculations.AddToMemory(Result);
Calculations.IncrementMemoryIndexByOne();
//Setting this variable to false as the user can use division or multiplication, because the Memory array is not empty
NewCalculation = false;
NoCalculationsYet = false;
}
if (TbInputNumbers.Text == "0")
{
MostRecentlyAddedResult = Calculations.GiveBackMostRecentValueOfResultMemory();
//Checking whether the memory has been cleared or not
//Progress of the calculation's text
if (MemoryHasBeenCleared == true)
{
TbCalculationProgress.Text += MostRecentlyAddedResult.ToString();
MemoryHasBeenCleared = false;
}
//Increment the index by one as we are not calculating but waiting for a new input
//(if this is not here then the result STEP of the Memory array will always change to the new input)
Calculations.IncrementMemoryIndexByOne();
}
//We add the button's text to the TbCalculationProgress textblock
TbCalculationProgress.Text += "+";
//After the calculation this variable will always be one
CalculationIsOnGoing = 1;
//Setting the TbInputNumbers Textblock's text to default after every calculation
TbInputNumbers.Text = "0";
}
