private void ProcessOtherButtons(string button)
{
switch (button)
{
case "C":
ClearDisplay();
break;
case "CE":
CurrentInput = "0";
break;
case "±":
if (!CurrentInput.Contains('-'))
{
CurrentInput = "-" + CurrentInput;
}
else
{
CurrentInput = CurrentInput.Substring(1);
}
break;
case "<-":
if (CurrentInput.Length == 0 || CurrentInput == "-" || CurrentInput == "Error" || CurrentInput == "NaN")
{
CurrentInput = "0";
}
else
{
CurrentInput = CurrentInput.Remove(CurrentInput.Length - 1);
}
break;
case "x^2":
NCalc.Expression powExp = new NCalc.Expression("Round(Pow(" + CurrentInput + ", 2), 3)");
CurrentInput = powExp.Evaluate().ToString();
break;
case "√":
NCalc.Expression sqrtExp = new NCalc.Expression("Round(Sqrt(" + CurrentInput + "), 3)");
CurrentInput = sqrtExp.Evaluate().ToString();
break;
case "1/x":
CurrentInput = new NCalc.Expression($"Round(1/{CurrentInput}, 3)").Evaluate().ToString();
break;
case "MS":
calcmemory = CurrentInput;
break;
case "M+":
calcmemory = new NCalc.Expression(calcmemory + "+" + CurrentInput).Evaluate().ToString();
break;
case "M-":
calcmemory = new NCalc.Expression(calcmemory + "-" + CurrentInput).Evaluate().ToString();
break;
case "MR":
if (!String.IsNullOrEmpty(calcmemory))
{
CurrentInput = calcmemory;
}
break;
case "MC":
calcmemory = "0";
break;
case ".":
if (!CurrentInput.Contains("."))
{
CurrentInput += ".";
}
break;
case "=":
NCalc.Expression exp = new NCalc.Expression(TextExpression + CurrentInput);
TextExpression = string.Empty;
CurrentInput = exp.Evaluate().ToString();
break;
default:
if (binaryOperationPressed)
{
// if previous operation is bin operation to clear old input values
CurrentInput = button;
binaryOperationPressed = false;
}
else
{
CurrentInput = CurrentInput.TrimStart('0') + button; // add new value to display and remove start 0
}
break;
}
}