void EliminaGaussiana(Matriz& m) {
for (int i = 0; i < m.size(); ++i) {
int fila_mayor = i;
for (int j = i + 1; j < m.size(); ++j)
if (fabs(m[fila_mayor][i]) <
fabs(m[j][i])) fila_mayor = j;
swap(m[i], m[fila_mayor]);
if (Igual(m[i][i], 0)) continue;
for (int j = m[i].size() - 1; j >= i; --j)
m[i][j] /= m[i][i];
for (int j = 0; j < m.size(); ++j) {
if (i == j || Igual(m[j][i], 0)) continue;
double ratio = m[j][i] / m[i][i];
for (int k = i; k < m[j].size(); ++k)
m[j][k] -= m[i][k] * ratio;
}
}
}
void EliminacionGaussiana(Matriz& m) {
for (int i = 0; i < m.size(); ++i) {
// <comment>
int fila_mayor = i;
for (int j = i + 1; j < m.size(); ++j)
if (fabs(m[fila_mayor][i]) <
fabs(m[j][i])) fila_mayor = j;
swap(m[i], m[fila_mayor]);
// </comment>
if (EsCero(m[i][i])) continue;
for (int j = m[i].size() - 1; j >= i; --j)
m[i][j] = m[i][j] / m[i][i];
for (int j = 0; j < m.size(); ++j) {
if (i == j || EsCero(m[j][i])) continue;
for (int k = m[j].size() - 1; k >= i; --k)
m[j][k] = m[j][k] - m[i][k] * m[j][i];
}
}
}
void printVector(Matriz &matriz){
int fila = 0,columna = 0;
for(int i=0; i<matriz.size(); ++i){
for(int j=0; j<matriz[0].size(); ++j){
// cout << "[" << matriz[i][j] << "]";
cout << "[" << matriz.at(i).at(j) << "]";
fila += matriz.at(i).at(j);
}
columna = sumaColumna(matriz, i);
cout << " suma por fila= " << fila << ", suma por columna= " << columna;
columna = 0;
fila = 0;
cout <<"\n";
}
}