diff --git a/qad/graphic/qpicalculator/mainwindow.cpp b/qad/graphic/qpicalculator/mainwindow.cpp
index c7ad2a3..3ebdf57 100644
--- a/qad/graphic/qpicalculator/mainwindow.cpp
+++ b/qad/graphic/qpicalculator/mainwindow.cpp
@@ -21,6 +21,7 @@ MainWindow::MainWindow(QWidget * parent): QMainWindow(parent), Ui::MainWindow()
 	session.addEntry(lineInput);
 	session.addEntry(tabWidget);
 	session.load();
+	ans = evaluator.setVariable("ans");
 	on_lineInput_returnPressed();
 }
 
@@ -122,7 +123,7 @@ void MainWindow::saving(QPIConfig & conf) {
 		vars << ti->text(0) << ti->text(1);
 	}
 	conf.setValue("variables", vars);
-	
+
 	QVector<GraphicType> g;
 	vc = treeGraphics->topLevelItemCount();
 	for (int i = 0; i < vc; ++i) {
@@ -153,6 +154,7 @@ void MainWindow::on_lineInput_returnPressed() {
 	labelError->setText(evaluator.error());
 	if (!ret) return;
 	complexd val = evaluator.evaluate();
+	evaluator.setVariable(ans, val);
 	if (val.imag() == 0) labelResult->setText(QString::number(val.real()));
 	else {
 		if (val.real() == 0) labelResult->setText(QString::number(val.imag()) + "i");
diff --git a/qad/graphic/qpicalculator/mainwindow.h b/qad/graphic/qpicalculator/mainwindow.h
index 601c2c9..efb44b9 100644
--- a/qad/graphic/qpicalculator/mainwindow.h
+++ b/qad/graphic/qpicalculator/mainwindow.h
@@ -25,10 +25,11 @@ protected:
 private:
 	void updateGraphics();
 	void redrawGraphics();
-	
+
 	QPIEvaluator evaluator;
 	QPalette npal, epal;
 	SessionManager session;
+	int ans;
 	bool active_;
 
 private slots: