Calculando determinante, matriz inversa y adjunta 3x3 java
aContinuando con las matrices ahora mostrare el código con el cual podrían calcular la determinante3x3, matriz inversa3x3 y la adjunta3x3 para que entiendan el tema les dejo estos vídeos donde explican como encontrarlas:
Aquí el código:
Determinante de una matriz 3X3:
Matriz Inversa 3X3
DETERMINANTE, TRANSPUESTA, ADJUNTA E INVERSA DE UNA MATRIZ 3X3
import javax.swing.*;
import java.awt.event.*;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.EventQueue;
import java.awt.Graphics;
import javax.swing.JLabel;
import javax.swing.JComboBox;
import javax.swing.JTextField;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import java.util.StringTokenizer;
import java.awt.event.*;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import java.util.StringTokenizer;
import java.awt.event.*;
public class Matrices3x3 extends JFrame implements ActionListener{
private int X=3,Y=3;
private JTextField[][] textfield1=new JTextField[100][100];
private JTextField TamanyoX;
private JLabel intro,total,lm,Matrizinversa;
private JLabel[][] MI = new JLabel[100][100];
private JButton boton1,boton2,boton3,boton4,boton5;
private JPanel contentPane;
private JComboBox dimension,combo1;
public Matrices3x3() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 450, 300);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
setBounds(0,0,400,300);
lm=new JLabel("total det.");
lm.setBounds(40,240,100,30);
add(lm);
total=new JLabel("0");
total.setBounds(100,240,60,30);
add(total);
boton2=new JButton("Determinante");
boton2.setBounds(500,210,125,30);
add(boton2);
boton4=new JButton("M. Inversa");
boton4.setBounds(500,240,125,30);
add(boton4);
boton5=new JButton("M. Adjunta");
boton5.setBounds(500,270,125,30);
add(boton5);
boton2.addActionListener(this);
boton4.addActionListener(this);
boton5.addActionListener(this);
for(int i=0;i<100;i++){
MI[i][i]=new JLabel();
MI[i][i].setText("");
MI[i][i].setBounds(i,i,60,30);
add(MI[i][i]);
MI[i][i].setVisible(false);
Matrizinversa = new JLabel();
Matrizinversa.setBounds(i,i,i,i);
Matrizinversa.setVisible(false);
}
//colocando textfield
int x=0,y=0,A,B=40;
for(x=0; x<3;x++){
System.out.println("for x");
A=80;
for( y=0; y<3;y++){
System.out.println("for y");
System.out.println("1");
textfield1[x][y] =new JTextField("0");
System.out.println("2");
textfield1[x][y].setBounds(B,A,30,20);
System.out.println("3");
add(textfield1[x][y]);
A=A+40;
}
B=B+40;
}
}
public void actionPerformed(ActionEvent e) {
//determinante 3x3
if (e.getSource()==boton2) {
double Total=0;
for(int gh=0;gh<=100;gh++){
for(int gh2=0;gh2<=100;gh2++)
{ try{
MI[gh][gh2].setVisible(false);
Matrizinversa.setVisible(false);
}catch(Exception ee){}
}
}
/* aqui muestro el orden de los nombres de la variables a las cuales les asigno los numeros
!a00 a10 a20! l2a00 l2a10
!a01 a11 a21! l2a01 l2a11
!a02 a12 a22! l2a02 l2a12
*/
double a00 = Double.parseDouble(textfield1[0][0].getText());
double a01 = Double.parseDouble(textfield1[0][1].getText());
double a02 = Double.parseDouble(textfield1[0][2].getText());
double a10 = Double.parseDouble(textfield1[1][0].getText());
double a11 = Double.parseDouble(textfield1[1][1].getText());
double a12 = Double.parseDouble(textfield1[1][2].getText());
double a20 = Double.parseDouble(textfield1[2][0].getText());
double a21 = Double.parseDouble(textfield1[2][1].getText());
double a22 = Double.parseDouble(textfield1[2][2].getText());
double l2a00 = Double.parseDouble(textfield1[0][0].getText());
double l2a10 = Double.parseDouble(textfield1[1][0].getText());
double l2a02 = Double.parseDouble(textfield1[0][2].getText());
double l2a01 = Double.parseDouble(textfield1[0][1].getText());
double l2a12 = Double.parseDouble(textfield1[1][2].getText());
double l2a21 = Double.parseDouble(textfield1[2][1].getText());
/*
!a00 a10 a20! l2a00 l2a10
!a01 a11 a21! l2a01 l2a11
!a02 a12 a22! l2a02 l2a12
*/
Total=a00*a11*a22 + a10*a21*l2a02 +a20*l2a01*l2a12;
Total=Total+(a02*a11*a20)*-1 + (a12*a21*l2a00)*-1 + (a22*l2a01*l2a10)*-1;
total.setText(String.valueOf(Total));
add(total);
}
//Matriz inversa 3x3
if (e.getSource()==boton4){//
for(int gh=0;gh<=100;gh++){
for(int gh2=0;gh2<=100;gh2++)
{
try{
MI[gh][gh2].setVisible(false);
Matrizinversa.setVisible(false);
}catch(Exception ee){}
}}
/*
!a00 a10 a20! l2a00 l2a10
!a01 a11 a21! l2a01 l2a11
!a02 a12 a22! l2a02 l2a12
*/
double Total=0;
double a00 = Double.parseDouble(textfield1[0][0].getText());
double a01 = Double.parseDouble(textfield1[0][1].getText());
double a02 = Double.parseDouble(textfield1[0][2].getText());
double a10 = Double.parseDouble(textfield1[1][0].getText());
double a11 = Double.parseDouble(textfield1[1][1].getText());
double a12 = Double.parseDouble(textfield1[1][2].getText());
double a20 = Double.parseDouble(textfield1[2][0].getText());
double a21 = Double.parseDouble(textfield1[2][1].getText());
double a22 = Double.parseDouble(textfield1[2][2].getText());
double l2a00 = Double.parseDouble(textfield1[0][0].getText());
double l2a10 = Double.parseDouble(textfield1[1][0].getText());
double l2a02 = Double.parseDouble(textfield1[0][2].getText());
double l2a01 = Double.parseDouble(textfield1[0][1].getText());
double l2a12 = Double.parseDouble(textfield1[1][2].getText());
double l2a21 = Double.parseDouble(textfield1[2][1].getText());
Total=a00*a11*a22 + a10*a21*l2a02 +a20*l2a01*l2a12;
Total=Total+(a02*a11*a20)*-1 + (a12*a21*l2a00)*-1 + (a22*l2a01*l2a10)*-1;
double[][] c = new double[X][X];
//,c01,c02,c10,c11,c12,c20,c21,c22;
if(Total!=0) {
c[0][0]=a11*a22-a21*a12;
c[1][0]=(a10*a22-a20*a12)*-1;
c[2][0]=a10*a21-a20*a11;
c[0][1]=(a01*a22-a21*a02)*-1;
c[1][1]=a00*a22-a20*a02;
c[2][1]=(a00*a21-a20*a01)*-1;
c[0][2]=a01*a12-a11*a02;
c[1][2]=(a00*a12-a10*a02)*-1;
c[2][2]=a00*a11-a10*a01;
int lx=160, ly=180;
//String a = TamanyoX.getText();
X=3;//Integer.parseInt(a);
for(int i=0; i<3;i++){
ly=180;
for(int i2=0; i2<3;i2++){
MI[i][i2] = new JLabel();
MI[i][i2].setBounds(i,i2,100,30);
MI[i][i2].setVisible(false);
add(MI[i][i2]);
Matrizinversa = new JLabel("lol");
Matrizinversa.setText("Resultado:");
Matrizinversa.setBounds(220,120,70,30);
Matrizinversa.setVisible(false);
add(Matrizinversa);
}
}
for(int i=0; i<3;i++){
ly=180;
for(int i2=0; i2<3;i2++){
Matrizinversa.setText("Resultado:");
Matrizinversa.setBounds(220,150,70,30);
Matrizinversa.setVisible(true);
add(Matrizinversa);
MI[i][i2].setText(String.valueOf(c[i][i2]/Total));//+"/"+String.valueOf(Total));
MI[i][i2].setBounds(lx,ly,100,30);
MI[i][i2].setVisible(true);
add(MI[i][i2]);
ly=ly+100;
MI[i][i2].setVisible(true);
}
lx=lx+120;
}
}else
{
total.setText("Error det. da 0");
add(total);
}
//
}
//Matriz adjunta 3x3
if (e.getSource()==boton5)
{
//
for(int gh=0;gh<=100;gh++){
for(int gh2=0;gh2<=100;gh2++)
{
try{
MI[gh][gh2].setVisible(false);
Matrizinversa.setVisible(false);
}catch(Exception ee){}
}}
/*
!a00 a10 a20! l2a00 l2a10
!a01 a11 a21! l2a01 l2a11
!a02 a12 a22! l2a02 l2a12
*/
double a00 = Double.parseDouble(textfield1[0][0].getText());
double a01 = Double.parseDouble(textfield1[0][1].getText());
double a02 = Double.parseDouble(textfield1[0][2].getText());
double a10 = Double.parseDouble(textfield1[1][0].getText());
double a11 = Double.parseDouble(textfield1[1][1].getText());
double a12 = Double.parseDouble(textfield1[1][2].getText());
double a20 = Double.parseDouble(textfield1[2][0].getText());
double a21 = Double.parseDouble(textfield1[2][1].getText());
double a22 = Double.parseDouble(textfield1[2][2].getText());
double l2a00 = Double.parseDouble(textfield1[0][0].getText());
double l2a10 = Double.parseDouble(textfield1[1][0].getText());
double l2a02 = Double.parseDouble(textfield1[0][2].getText());
double l2a01 = Double.parseDouble(textfield1[0][1].getText());
double l2a12 = Double.parseDouble(textfield1[1][2].getText());
double l2a21 = Double.parseDouble(textfield1[2][1].getText());
double[][] c = new double[X][X];
//,c01,c02,c10,c11,c12,c20,c21,c22;
c[0][0]=a11*a22-a21*a12;
c[0][1]=(a10*a22-a20*a12)*-1;
c[0][2]=a10*a21-a20*a11;
c[1][0]=(a01*a22-a21*a02)*-1;
c[1][1]=a00*a22-a20*a02;
c[1][2]=(a00*a21-a20*a01)*-1;
c[2][0]=a01*a12-a11*a02;
c[2][1]=(a00*a12-a10*a02)*-1;
c[2][2]=a00*a11-a10*a01;
int lx=220, ly=180;
// String a = TamanyoX.getText();
X=3;//Integer.parseInt(a);
for(int i=0; i<3;i++){
ly=180;
for(int i2=0; i2<3;i2++){
MI[i][i2] = new JLabel();
MI[i][i2].setBounds(i,i2,100,30);
MI[i][i2].setVisible(false);
add(MI[i][i2]);
Matrizinversa = new JLabel("lol");
Matrizinversa.setText("Resultado:");
Matrizinversa.setBounds(220,150,70,30);
Matrizinversa.setVisible(false);
add(Matrizinversa);
}
}
for(int i=0; i<3;i++){
ly=180;
for(int i2=0; i2<3;i2++){
Matrizinversa.setText("Resultado:");
Matrizinversa.setBounds(220,150,70,30);
Matrizinversa.setVisible(true);
add(Matrizinversa);
MI[i][i2].setText(String.valueOf(c[i][i2])/*+"/"+String.valueOf(Total)*/);
MI[i][i2].setBounds(lx,ly,100,30);
MI[i][i2].setVisible(true);
add(MI[i][i2]);
System.out.println("i= "+i+" i2= "+i2);
ly=ly+60;
MI[i][i2].setVisible(true);
}
lx=lx+80;
}
//
}
}
public static void main(String[] ar) {
Matrices3x3 formulario=new Matrices3x3();
formulario.setBounds(0,0,720,600);
formulario.setVisible(true);
}
}
- Obtener vínculo
- Correo electrónico
- Otras apps
Comentarios
Publicar un comentario