Prueba MRU MRUV

public class Tabajo_clase extends javax.swing.JApplet {

/** Initializes the applet Tabajo_clase */
public void init() {
try {
java.awt.EventQueue.invokeAndWait(new Runnable() {
public void run() {
initComponents();
}
});
} catch (Exception ex) {
ex.printStackTrace();
}
}

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
Matriz Vo = new Matriz(1,3);
double aux = Double.parseDouble(jTextField8.getText());
Vo.matriz[0][0]= aux;
aux= Double.parseDouble(jTextField1.getText());
Vo.matriz[0][1]= aux;
aux= Double.parseDouble(jTextField10.getText());
Vo.matriz[0][2]= aux;

double t = Double.parseDouble(jTextField2.getText());

Matriz Xo = new Matriz(1,3);
aux = Double.parseDouble(jTextField9.getText());
Xo.matriz[0][0]= aux;
aux= Double.parseDouble(jTextField3.getText());
Xo.matriz[0][1]= aux;
aux= Double.parseDouble(jTextField11.getText());
Xo.matriz[0][2]= aux;

jTextArea1.setText(Xo.suma(Vo.multiplicaEscalar(t)).imprimir());
}

private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
Matriz Vo = new Matriz(1,3);
double aux = Double.parseDouble(jTextField4.getText());
Vo.matriz[0][0]= aux;
aux= Double.parseDouble(jTextField12.getText());
Vo.matriz[0][1]= aux;
aux= Double.parseDouble(jTextField13.getText());
Vo.matriz[0][2]= aux;

double t = Double.parseDouble(jTextField5.getText());

Matriz a = new Matriz(1,3);
aux = Double.parseDouble(jTextField7.getText());
a.matriz[0][0]= aux;
aux= Double.parseDouble(jTextField16.getText());
a.matriz[0][1]= aux;
aux= Double.parseDouble(jTextField17.getText());
a.matriz[0][2]= aux;

Matriz Xo = new Matriz(1,3);
aux = Double.parseDouble(jTextField6.getText());
Xo.matriz[0][0]= aux;
aux= Double.parseDouble(jTextField14.getText());
Xo.matriz[0][1]= aux;
aux= Double.parseDouble(jTextField15.getText());
Xo.matriz[0][2]= aux;

jTextArea3.setText(Xo.suma(Vo.multiplicaEscalar(t)).suma(a.multiplicaEscalar(t*t).multiplicaEscalar(0.5)).imprimir());
}

private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
Matriz Vo = new Matriz(1,3);
double aux = Double.parseDouble(jTextField4.getText());
Vo.matriz[0][0]= aux;
aux= Double.parseDouble(jTextField12.getText());
Vo.matriz[0][1]= aux;
aux= Double.parseDouble(jTextField13.getText());
Vo.matriz[0][2]= aux;

double t = Double.parseDouble(jTextField5.getText());

Matriz a = new Matriz(1,3);
aux = Double.parseDouble(jTextField7.getText());
a.matriz[0][0]= aux;
aux= Double.parseDouble(jTextField16.getText());
a.matriz[0][1]= aux;
aux= Double.parseDouble(jTextField17.getText());
a.matriz[0][2]= aux;

Matriz Xo = new Matriz(1,3);
aux = Double.parseDouble(jTextField6.getText());
Xo.matriz[0][0]= aux;
aux= Double.parseDouble(jTextField14.getText());
Xo.matriz[0][1]= aux;
aux= Double.parseDouble(jTextField15.getText());
Xo.matriz[0][2]= aux;

jTextArea2.setText(Vo.suma(a.multiplicaEscalar(t)).imprimir());
}

private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
Matriz Vo = new Matriz(1,3);
double aux = Double.parseDouble(jTextField8.getText());
Vo.matriz[0][0]= aux;
aux= Double.parseDouble(jTextField1.getText());
Vo.matriz[0][1]= aux;
aux= Double.parseDouble(jTextField10.getText());
Vo.matriz[0][2]= aux;

double x=1;
jTextArea4.setText(Vo.multiplicaEscalar(x).imprimir());
}
}