/// <summary>
/// Static method multiplies 2 polynomials.
/// </summary>
/// <param name="firstPolynom">
/// first polynomial.
/// </param>
/// <param name="secondPolynom">
/// second polynomial.
/// </param>
/// <returns>
/// Result of multiplication.
/// </returns>
private static Polynom Multiply(Polynom firstPolynom, Polynom secondPolynom)
{
double[] result_array = new double[firstPolynom.ArrayOfFactors.Length + secondPolynom.ArrayOfFactors.Length];
for (int i = secondPolynom.ArrayOfFactors.Length - 1; i >= 0; i--)
{
for (int j = 0; j < firstPolynom.ArrayOfFactors.Length; j++)
{
result_array[i + j] += firstPolynom.ArrayOfFactors[j] * secondPolynom.ArrayOfFactors[i];
}
}
return(new Polynom(result_array));
}
public PolynomialBuilding(params double[] coefficient)
{
polynom = new Polynom[coefficient.Length];
for (int i = 0; i < coefficient.Length; i++)
{
if (coefficient[i] > Eps)
{
polynom[i] = new Polynom(coefficient[i], i);
}
else
{
polynom[i] = new Polynom();
}
}
}
/// <summary>
/// Entry point.
/// </summary>
public static void Main()
{
Polynom x1 = new Polynom();
Polynom x2 = new Polynom();
Polynom x3 = x1 * x2;
string str = x3.ToString();
for (int i = 0; i < x3.ArrayOfFactors.Length; i++)
{
Console.Write($"{x3.ArrayOfFactors[i]} ");
}
Console.WriteLine();
Console.WriteLine(str);
Console.ReadKey();
}
private void pbNewPolynom_Click(object sender, EventArgs e)
{
Label destination = null;
if (sender.Equals(pbNewPolynom1))
{
destination = lbPolynom1;
}
if (sender.Equals(pbNewPolynom2))
{
destination = lbPolynom2;
}
if (destination == null)
{
return;
}
List <double> coeficents = new List <double>();
int count = 0;
string str;
do
{
str = Interaction.InputBox(string.Format("Введите коэфицент a{0}", count++), "Коефицент");
if (str != "")
{
coeficents.Add(double.Parse(str));
}
} while (str != "");
Polynom polynom = new Polynom(coeficents.ToArray());
if (sender.Equals(pbNewPolynom1))
{
lbVariableName.Text = string.Format(variableNamePatern, polynom.Variable);
p1 = polynom;
}
if (sender.Equals(pbNewPolynom2))
{
p2 = polynom;
}
destination.Text = polynom.ToString();
}
private static bool Compare(Polynom p1, Polynom p2)
{
if (p1.ArrayOfFactors.Length == p2.ArrayOfFactors.Length)
{
for (int i = 0; i < p1.ArrayOfFactors.Length; i++)
{
if (p1.ArrayOfFactors[i] != p2.ArrayOfFactors[i])
{
return(false);
}
}
}
else
{
return(false);
}
return(true);
}
static void Main(string[] args)
{
// Polynom polynom = new Polynom("-x^2g-3x-4");
Polynom polynom = new Polynom("x^2-3x-8");
Polynom polynom1 = new Polynom("3x+5x");
// Console.WriteLine(polynom.Max);
// Console.WriteLine(polynom1.Max);
Console.WriteLine("dvd");
Operations.Sum(polynom, polynom1);
//polynom.Show();
// polynom.Show();
Console.WriteLine();
// polynom1.Show();
//polynom1.Show();
// Console.WriteLine(Operations.Sum(polynom, polynom1));
Console.ReadKey();
}
public static PolynomialBuilding operator *(PolynomialBuilding first, PolynomialBuilding second)
{
if (first == null || second == null)
{
throw new NullReferenceException();
}
Polynom[] resultPolynom = new Polynom[first.polynom.Length + second.polynom.Length - 1];
for (int i = 0; i < first.polynom.Length; i++)
{
for (int j = 0; j < second.polynom.Length; j++)
{
resultPolynom[i + j].Coefficient += first.polynom[i].Coefficient * second.polynom[j].Coefficient;
}
}
for (int i = 0; i < resultPolynom.Length; i++)
{
if (!(resultPolynom[i].Coefficient < 0 + Eps && resultPolynom[i].Coefficient > 0 - Eps))
{
resultPolynom[i].Power = i;
}
}
return(new PolynomialBuilding(resultPolynom));
}
private void button7_Click(object sender, EventArgs e)
{
if (radioButton1.Checked)
{
f = new Polynom(p.GetNodes());
}
if (radioButton2.Checked)
{
p = new Polynom(f.GetNodes());
}
if (radioButton3.Checked)
{
var temp = new Polynom(f.GetNodes());
f = new Polynom(p.GetNodes());
p = new Polynom(temp.GetNodes());
}
prepareLetters();
textBox3.Text = p.GetRepresentation();
textBox4.Text = f.GetRepresentation();
}
static void Main(string[] args)
{
Console.WriteLine("Polynomial 1");
Polynom p1 = new Polynom();
p1.CreatePolynom();
p1.Print();
Console.WriteLine();
Console.WriteLine("Polynomial 2");
Polynom p2 = new Polynom();
p2.CreatePolynom();
p2.Print();
Console.WriteLine();
Polynom p3;
while (true)
{
Console.WriteLine("1. Add polynomials.");
Console.WriteLine("2. Subtract polynomials.");
Console.WriteLine("3. Multiply polynomials.");
Console.WriteLine("4. Increment polynomial.");
Console.WriteLine("5. Recreate polynomials.");
Console.Write("Select menu item: ");
int key = Convert.ToInt32(Console.ReadLine());
Console.WriteLine();
switch (key)
{
case 1:
p3 = p1 + p2;
p3.Print();
Console.WriteLine();
break;
case 2:
p3 = p1 - p2;
p3.Print();
Console.WriteLine();
break;
case 3:
p3 = p1 - p2;
p3.Print();
Console.WriteLine();
break;
case 4:
p3 = p1++;
p3.Print();
Console.WriteLine();
break;
case 5:
Console.WriteLine("Polynomial 1");
p1.RecreatePolynom();
p1.Print();
Console.WriteLine();
Console.WriteLine("Polynomial 2");
p2.RecreatePolynom();
p2.Print();
Console.WriteLine();
break;
default:
Console.WriteLine("\nThere are no such menu item!\nPlease try again!\n");
break;
}
}
}
public void RecreatePolynom()
{
Polynom p1 = new Polynom();
CreatePolynom();
}
//public static int i=0;
public static void Sum(Polynom one, Polynom two)
{
if (one.Variable == two.Variable)
{
int i = one.CompareTo(two);
var variable = one.Variable;
Dictionary <int, int> Coefficient = new Dictionary <int, int>();
Dictionary <int, string> Variables = new Dictionary <int, string>();
Dictionary <int, int> Exponents = new Dictionary <int, int>();
int j = 0;
int k = 0;
bool check = false;
while (i > 0)
{
foreach (var item in one.Exponents)
{
k = 0;
if (item.Value == i)
{
Coefficient[j] = item.Value;
Variables[j] = variable;
Exponents[j] = i;
check = true;
}
if (one.Variables[k] == null && i == 1)
{
Console.WriteLine(item.Value);
}
k++;
}
/* foreach (var item in two.Exponents)
* {
* if (item.Value == i)
* {
* Coefficient[j] += item.Value;
* Variables[j] = variable;
* Exponents[j] = i;
* check = true;
* }
* }*/
if (check == true)
{
j++;
check = false;
}
// Console.WriteLine(Coefficient[0]);
// Console.WriteLine(Variables[0]);
--i;
}
}
else
{
throw new Exception("Different variables");
}
}