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This commit is contained in:
Andrii Solianyk
2024-11-13 23:14:28 +01:00
parent 889d6d0e7e
commit 98a3e97601
4 changed files with 130 additions and 20 deletions
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41
interpolacja/Interpolacja.cpp
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@@ -43,7 +43,7 @@ public:
void oblicz()
{
bool rowne_odstepy = true;
rowne_odstepy = true;
float pierwszy_odstep = x[1] - x[0];
// Sprawdzenie czy odstępy x są takie same
@@ -87,39 +87,41 @@ public:
else
{
// Lagrange
suma = 0.0;
suma = 0;
for (int i = 0; i < liczba_wezlow; i++)
{
double iloczyn = tablica_roznic[i][0];
float L = 1;
for (int j = 0; j < liczba_wezlow; j++)
{
if (i != j)
{
iloczyn *= (x[j] - x[0]) / (x[i] - x[j]);
L *= (x[j] - x[0]) / (x[j] - x[i]);
}
}
suma += iloczyn;
suma += L * y[i];
}
}
}
void wyswietl_tabela()
{
// nagłowki
cout << setw(5) << "i" << setw(10) << "x" << setw(10) << "y";
for (int j = 1; j < liczba_wezlow; ++j)
cout << setw(10) << "Δ^" + to_string(j);
cout << endl;
// wartości
for (int i = 0; i < liczba_wezlow; i++)
{
cout << setw(5) << i << setw(10) << x[i];
for (int j = 0; j < liczba_wezlow - i; j++)
{
cout << setw(10) << tablica_roznic[i][j];
}
if(rowne_odstepy) {
// nagłowki
cout << setw(5) << "i" << setw(10) << "x" << setw(10) << "y";
for (int j = 1; j < liczba_wezlow; ++j)
cout << setw(10) << "Δ^" + to_string(j);
cout << endl;
// wartości
for (int i = 0; i < liczba_wezlow; i++)
{
cout << setw(5) << i << setw(10) << x[i];
for (int j = 0; j < liczba_wezlow - i; j++)
{
cout << setw(10) << tablica_roznic[i][j];
}
cout << endl;
}
}
cout << "Interpolowany wynik: " << suma << endl;
@@ -128,6 +130,7 @@ public:
private:
float a, b, h, suma, czynnik;
int liczba_wezlow;
bool rowne_odstepy;
vector<float> x, y;
vector<vector<float> > tablica_roznic;
};