@Override
public void applyDC(DCEquation equation) {
equation.applyMatrixStamp(currentOutIndex, nPlus, 1);
equation.applyMatrixStamp(currentOutIndex, nMinus, -1);
equation.applyMatrixStamp(currentOutIndex, dummySource.getCurrentVarIndex(), -gm);
equation.applyMatrixStamp(nPlus, currentOutIndex, 1);
equation.applyMatrixStamp(nMinus, currentOutIndex, -1);
}