public static void Main()
{
const int Max = 5;
double x;
do
{
Console.Write("Введите x - ");
} while (!double.TryParse(Console.ReadLine(), out x));
Proizv prF = (i) => {
double p = 1;
for (int j = 1; j <= Max; j++)
{
p = p * i * x / j;
}
return(p);
};
Sum sumF = () => {
double S = 0;
for (int i = 1; i <= Max; i++)
{
S += prF(i);
}
return(S);
};
Console.WriteLine(sumF());
Console.ReadKey();
}
private void Button_Click(object sender, RoutedEventArgs e)
{
try
{
Proizv prv = new Proizv(TBa.Text, TBb.Text);
label.Content = prv.getProizv();
}
catch
{
label.Content = "Введен неверный символ";
}
}
private void GetAnser(object sender, EventArgs e)
{
result.Text = null;
string func = expres.Text;
List <string> arguments = new List <string>();
string operand1 = "";
string operand2 = "";
string lastOperation = "";
List <string> operations = new List <string> {
"(", "+", "-", "*", "/", "^", ")", "(", "()"
};
List <string> functions = new List <string> {
"sin", "cos", "exp", "tan", "ln", "lg", "sh", "ch"
};
int symbolNumber = 0;
String sourceExpression = expres.Text.Replace(" ", "");
while (symbolNumber < sourceExpression.Length)
{
int currentIndex = arguments.Count - 1;
//Open brackets
if (sourceExpression[symbolNumber] == '(')
{
arguments.Add(sourceExpression[symbolNumber].ToString());
while (operations.Contains(arguments[currentIndex]) &&
operations.LastIndexOf(sourceExpression[symbolNumber].ToString()) >
operations.IndexOf(arguments[currentIndex]))
{
arguments[currentIndex + 1] = arguments[currentIndex];
currentIndex--;
}
arguments[currentIndex + 1] = sourceExpression[symbolNumber].ToString();
lastOperation = sourceExpression[symbolNumber].ToString();
symbolNumber++;
continue;
}
//Close brackets
else if (sourceExpression[symbolNumber] == ')')
{
arguments[arguments.LastIndexOf("(")] = "()";
lastOperation = "()";
symbolNumber++;
continue;
}
//Operation
else if (operations.Contains(sourceExpression[symbolNumber].ToString()))
{
//Always after (
if (lastOperation == "(")
{
int index = arguments.LastIndexOf(lastOperation);
arguments.Add(lastOperation);
while (currentIndex >= index)
{
arguments[currentIndex + 1] = arguments[currentIndex];
currentIndex--;
}
arguments[currentIndex + 1] = sourceExpression[symbolNumber].ToString();
}
//priority
else
{
arguments.Add(lastOperation.ToString());
while (
operations.Contains(arguments[currentIndex]) &&
operations.IndexOf(sourceExpression[symbolNumber].ToString()) >
operations.IndexOf(arguments[currentIndex]))
{
arguments[currentIndex + 1] = arguments[currentIndex];
currentIndex--;
}
arguments[currentIndex + 1] = sourceExpression[symbolNumber].ToString();
}
lastOperation = sourceExpression[symbolNumber].ToString();
symbolNumber++;
}
//Operand1
else if (operand1 == "")
{
while (symbolNumber < sourceExpression.Length &&
!operations.Contains(sourceExpression[symbolNumber].ToString()))
{
operand1 += sourceExpression[symbolNumber];
symbolNumber++;
}
arguments.Add(operand1);
if (functions.Contains(operand1))
{
arguments.Add("Compose");
}
operand2 = "";
}
//Operand2
else if (operand2 == "")
{
while (symbolNumber < sourceExpression.Length &&
!operations.Contains(sourceExpression[symbolNumber].ToString()))
{
operand2 += sourceExpression[symbolNumber];
symbolNumber++;
}
int index = arguments.LastIndexOf(lastOperation.ToString());
int bracketIndex = arguments.IndexOf("(");
if (bracketIndex > 0 &&
arguments.LastIndexOf(lastOperation.ToString(), bracketIndex) > 0 &&
arguments.LastIndexOf(lastOperation.ToString(), bracketIndex) < index)
{
index = arguments.LastIndexOf(lastOperation.ToString(), arguments.IndexOf("("));
}
arguments.Add(operand2);
if (functions.Contains(operand2))
{
arguments.Add("Compose");
}
#region Put arg2 at right place
currentIndex = arguments.Count - 1;
while (currentIndex > index)
{
if (functions.Contains(operand2))
{
arguments[currentIndex] = arguments[currentIndex - 2];
}
else
{
arguments[currentIndex] = arguments[currentIndex - 1];
}
currentIndex--;
}
arguments[index] = operand2;
if (functions.Contains(operand2))
{
arguments[index + 1] = "Compose";
}
#endregion
operand2 = "";
}
result.Text += String.Join(",", arguments) + Environment.NewLine;
}
Dictionary <string, string> DiffsList = new Dictionary <string, string>();
//Calculating f'
while (arguments.Count > 1)
{
String firstOper = "";
int firstOperIndex = arguments.Count;
foreach (String str in operations)
{
if (arguments.IndexOf(str) > 0 && arguments.IndexOf(str) < firstOperIndex)
{
firstOperIndex = arguments.IndexOf(str);
firstOper = str;
}
}
string f1 = "", f2 = "", df1 = "", df2 = "", oper = "", expression = "", diff = "";
if (firstOper == "()")
{
arguments.RemoveAt(firstOperIndex);
int ComposeIndex = arguments.LastIndexOf("Compose", firstOperIndex);
if (ComposeIndex > 0)
{
f1 = arguments[ComposeIndex - 1];
df1 = Proizv.Diff(f1, DiffsList);
f2 = arguments[ComposeIndex + 1];
df2 = Proizv.Diff(f2, DiffsList);
oper = "Compose";
expression = f1 + "(" + f2 + ")";
diff = Proizv.Diff(f1, df1, f2, df2, oper);
arguments.RemoveAt(ComposeIndex + 1);
arguments.RemoveAt(ComposeIndex);
arguments[ComposeIndex - 1] = expression;
}
else
{
continue;
}
}
else
{
f1 = arguments[firstOperIndex - 2];
df1 = Proizv.Diff(f1, DiffsList);
f2 = arguments[firstOperIndex - 1];
df2 = Proizv.Diff(f2, DiffsList);
oper = arguments[firstOperIndex];
expression = f1 + oper + f2;
diff = Proizv.Diff(f1, df1, f2, df2, oper);
arguments.RemoveAt(firstOperIndex);
arguments.RemoveAt(firstOperIndex - 1);
arguments[firstOperIndex - 2] = expression;
}
result.Text = null;
if (!DiffsList.ContainsKey(expression))
{
DiffsList.Add(expression, diff);
}
result.Text += Environment.NewLine + diff;
result.IsVisible = true;
}
}
