private void InfixNotationButton_Click(object sender, EventArgs e)
{
ListExpresstionTextBox.Clear();
Notation ntn = new InfixNotation();
ShowExpression(ntn);
}
static void Main(string[] args)
{
try
{
//IExpression exp = new DivExp(new ConstExp(0), MonomialExp.createInstance(3, 0));
IExpression exp = new DivExp(new MulExp(new ConstExp(10), MonomialExp.createInstance(3, 0)), new AddExp(new MulExp(MonomialExp.createInstance(5, 2), new ConstExp(4)), MonomialExp.createInstance(3, 2)));
//IExpression exp = new DivExp(MonomialExp.createInstance(3, 2), new ConstExp(-2));
double eValue = exp.evaluate(3);
Console.WriteLine("Value:");
Console.WriteLine("The value of expression when x = 3 : {0}", eValue);
// ---------------
Console.WriteLine("\nNotations:");
INotation infixNtn = new InfixNotation();
INotation prefixNtn = new PrefixNotation();
INotation posfixNtn = new PosfixNotation();
Console.WriteLine("Infix Notation: {0}", exp.toString(infixNtn));
Console.WriteLine("Prefix Notation: {0}", exp.toString(prefixNtn));
Console.WriteLine("Posfix Notation: {0}", exp.toString(posfixNtn));
// ---------------
Console.WriteLine("\nDerivative with notations:");
Console.WriteLine("Infix Notation: {0}", exp.derive().toString(infixNtn));
Console.WriteLine("Prefix Notation: {0}", exp.derive().toString(prefixNtn));
Console.WriteLine("Posfix Notation: {0}", exp.derive().toString(posfixNtn));
}
catch (Exception e)
{
Console.WriteLine("Error : {0}", e.Message);
}
}
static void Main(string[] args)
{
// (3x^2 + 7) / (4x^3 + 5)
Expression exp = new DivExpr(
new AddExpr(
MonomialExpr.createObject(3, 2),
ConstExpr.createObject(7)),
new AddExpr(
MonomialExpr.createObject(4, 3),
ConstExpr.createObject(5)));
InfixNotation infix = new InfixNotation();
PrefixNotation prefix = new PrefixNotation();
PostfixNotation postfix = new PostfixNotation();
Console.WriteLine(exp.ToString(infix));
Console.WriteLine(exp.ToString(prefix));
Console.WriteLine(exp.ToString(postfix));
}
private void DeriveButton_Click(object sender, EventArgs e)
{
ListExpresstionTextBox.Clear();
Notation ntn = new InfixNotation();
Expression constExp = new ConstExp(double.Parse(ConstExpressionTextBox.Text));
Expression monoExp = GetMonoExpression(MonomialExpressionTextBox.Text);
Expression binExp1 = GetMonoExpression(BinaryExpression1TextBox.Text);
Expression binExp2 = GetMonoExpression(BinaryExpression2TextBox.Text);
Expression binExp = null;
constExp = constExp.Derive();
monoExp = monoExp.Derive();
ListExpresstionTextBox.AppendText(constExp.toString(ntn) + "\n");
ListExpresstionTextBox.AppendText(monoExp.toString(ntn) + "\n");
string ope = OperatorTextBox.Text;
switch (ope)
{
case "+":
binExp = new AddExp(binExp1, binExp2).Derive();
break;
case "-":
binExp = new MinusExp(binExp1, binExp2).Derive();
break;
case "*":
binExp = new MulExp(binExp1, binExp2).Derive();
break;
case "/":
binExp = new DivExp(binExp1, binExp2).Derive();
break;
}
ListExpresstionTextBox.AppendText(binExp.toString(ntn) + "\n");
}
