diff --git a/PyQt-Plotter-Dialog/plotter_dialog/__main__.py b/PyQt-Plotter-Dialog/plotter_dialog/__main__.py
index 3a5f405..f88bdb6 100644
--- a/PyQt-Plotter-Dialog/plotter_dialog/__main__.py
+++ b/PyQt-Plotter-Dialog/plotter_dialog/__main__.py
@@ -12,38 +12,9 @@ def main():
 
     variables = [chr(ord("a") + i) for i in range(10)]
 
-    functions = [
-        "abs",
-        "acos",
-        "acosh",
-        "acot",
-        "asin",
-        "asinh",
-        "atan",
-        "avg",
-        "cos",
-        "cosh",
-        "cot",
-        "exp",
-        "lg",
-        "ln",
-        "log2",
-        "max",
-        "min",
-        "prod",
-        "sgn",
-        "sin",
-        "sinh",
-        "sqrt",
-        "sum",
-        "tanh",
-        "tan",
-    ]
-
     dlg = PlotterDialog(
-        variable_full_names={key: key.upper() for key in variables},
-        function_full_names={key: key.upper() for key in functions},
         variable_values={key: np.sort(np.random.random(10)) * 10 for key in variables},
+        variable_full_names={key: key.upper() for key in variables},
     )
     dlg.show()
 
diff --git a/PyQt-Plotter-Dialog/plotter_dialog/constants.py b/PyQt-Plotter-Dialog/plotter_dialog/constants.py
new file mode 100644
index 0000000..60d356c
--- /dev/null
+++ b/PyQt-Plotter-Dialog/plotter_dialog/constants.py
@@ -0,0 +1,27 @@
+FUNCTION_NAMES = {
+    "sin": "Синус",
+    "cos": "Косинус",
+    "tan": "Тангенс",
+    "cot": "Котангенс",
+    "abs": "Модуль",
+    "exp": "Экспонента (e^x)",
+    "sqrt": "Квадратный корень",
+    "ln": "Натуральный логарифм",
+    "lg": "Десятичный логарифм",
+    "log2": "Двоичный логарифм",
+    "sgn": "Знак",
+    "asin": "Арксинус",
+    "acos": "Арккосинус",
+    "atan": "Арктангенс",
+    "acot": "Арккотангенс",
+    "sinh": "Гиперболический синус",
+    "cosh": "Гиперболический косинус",
+    "tanh": "Гиперболический тангенс",
+    "acosh": "Гиперболический арккосинус",
+    "asinh": "Гиперболический арксинус",
+    "sum": "Сумма",
+    "prod": "Произведение",
+    "min": "Минимум",
+    "avg": "Среднее",
+    "max": "Максимум",
+}
diff --git a/PyQt-Plotter-Dialog/plotter_dialog/dialog.py b/PyQt-Plotter-Dialog/plotter_dialog/dialog.py
index 4880a64..29a510b 100644
--- a/PyQt-Plotter-Dialog/plotter_dialog/dialog.py
+++ b/PyQt-Plotter-Dialog/plotter_dialog/dialog.py
@@ -14,6 +14,7 @@ from PyQt5.QtWidgets import (
 import numpy as np
 
 from .button_group import ButtonGroup
+from .constants import FUNCTION_NAMES
 from .graph_requester import GraphRequester
 
 from parser import Parser
@@ -26,9 +27,9 @@ class PlotterDialog(QDialog):
 
     def __init__(
         self,
-        variable_full_names: dict[str, str],
-        function_full_names: dict[str, str],
-        variable_values: dict[str, np.ndarray],
+        variable_values: dict[str, np.ndarray] = {},
+        variable_full_names: dict[str, str] = {},
+        function_full_names: dict[str, str] = FUNCTION_NAMES,
     ):
         super().__init__()
 
@@ -44,7 +45,6 @@ class PlotterDialog(QDialog):
 
         scrollWidget = QWidget()
 
-        # self.scroll.setFrameShape(QFrame.NoFrame)
         self.scroll.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOn)
 
         self.inputs_layout = QVBoxLayout()  # лаяут первой трети