excel happened

Л3-В6/Программа/src/window.py

@@ -220,6 +220,8 @@ class MainWindow(QMainWindow):
 
     def setupUI(self):
         self.setWindowTitle("Лабораторная работа №3")
+        self.resize(700, 200)
+
         self.central_widget = QWidget()
         self.setCentralWidget(self.central_widget)
 
@@ -244,6 +246,10 @@ class MainWindow(QMainWindow):
         self.paste_button.clicked.connect(self.on_paste_button_clicked)
         buttons_row_layout.addWidget(self.paste_button)
 
+        self.random_button = QPushButton("Случайная", self)
+        self.random_button.clicked.connect(self.on_random_button_clicked)
+        buttons_row_layout.addWidget(self.random_button)
+
         buttons_row.setLayout(buttons_row_layout)
         layout.addWidget(buttons_row)
 
@@ -268,6 +274,13 @@ class MainWindow(QMainWindow):
 
         self.central_widget.setLayout(layout)
 
+    def on_random_button_clicked(self):
+        n = int(self.n_input.get_value())
+        self.matrix_a = np.round(np.random.rand(n, n) * 10, 2)
+        self.matrix_b = np.round(np.random.rand(n, 1) * 10, 2)
+
+        self.set_matrix(self.matrix_a, self.matrix_b)
+
     def on_find_solution_clicked(self):
         x = solution.iterative_method(self.matrix_a, self.matrix_b)
 
@@ -368,9 +381,12 @@ class MainWindow(QMainWindow):
 
         try:
             self.det_display.set_text(f"{algorithm.det(self.matrix_a):.5f}")
-            self.cond_display.set_text(f"{algorithm.cond(self.matrix_a):.5f}")
         except:
             self.det_display.set_text("Невозможно вычислить")
+
+        try:
+            self.cond_display.set_text(f"{algorithm.cond(self.matrix_a):.5f}")
+        except:
             self.cond_display.set_text("Невозможно вычислить")
 
     def set_matrix(self, A: np.matrix, B: np.matrix):