diff --git a/Signal Generator/DrawTask.cs b/Signal Generator/DrawTask.cs
index 1cffceb..dbc0e59 100644
--- a/Signal Generator/DrawTask.cs	
+++ b/Signal Generator/DrawTask.cs	
@@ -55,29 +55,37 @@ namespace Signal_Generator
         {
             double lastX = 0, lastY = 0;
             double W = canvas.ActualWidth;
-            double mod = (procedureModel.Duration / 1000) / W;
+            double dX = (procedureModel.Duration / 1000) / W;
             for (int X = 0; X != (int)W; X++)
             {
-                double Y = multiSignal.currentAmplitude(X * mod);
-                updateTextBoxProps(Y, X * mod);
+                double Y = multiSignal.currentAmplitude(X * dX);
+                updateTextBoxProps(Y, X * dX * 1000);
                 drawLine(lastX, lastY, X, Y);
                 lastX = X;
                 lastY = Y;
-                Thread.Sleep(10);
-                switch (state)
-                {
-                    case State.Paused:
-                        while (state == State.Paused)
-                            Thread.Sleep(50);
-                        break;
-                    case State.Canceled: return;
-                }
+                if (taskSemaphore() == false) return;
             }
             state = State.Finished;
         }
 
+        private bool taskSemaphore()
+        {
+            Thread.Sleep(10);
+            switch (state)
+            {
+                case State.Paused:
+                    while (state == State.Paused)
+                        Thread.Sleep(50);
+                    break;
+                case State.Canceled: return false;
+            }
+            return true;
+        }
+
         private void updateTextBoxProps(double amp, double time)
         {
+            amp = Math.Round(amp, 2);
+            time = Math.Round(time, 2);
             procedureModel.CurrentAmplitude = amp.ToString();
             procedureModel.CurrentTime = time.ToString();
         }
diff --git a/Signal Generator/ProcedureModel.cs b/Signal Generator/ProcedureModel.cs
index 776ec25..daceade 100644
--- a/Signal Generator/ProcedureModel.cs	
+++ b/Signal Generator/ProcedureModel.cs	
@@ -65,14 +65,11 @@ namespace Signal_Generator
             if (currentTask == null) return "Запустить";
             switch (currentTask.state)
             {
-                case DrawTask.State.Created:
-                    return "Запустить";
                 case DrawTask.State.Running:
-                    return "Завершить";
                 case DrawTask.State.Paused:
-                    goto case DrawTask.State.Running;
+                    return "Завершить";
                 default:
-                    goto case DrawTask.State.Created;
+                    return "Запустить";
             }
         }
 
@@ -81,14 +78,12 @@ namespace Signal_Generator
             if (currentTask == null) return new Tuple<bool, string>(false, "Пауза");
             switch (currentTask.state)
             {
-                case DrawTask.State.Created:
-                    return new Tuple<bool, string>(false, "Пауза");
                 case DrawTask.State.Running:
                     return new Tuple<bool, string>(true, "Пауза");
                 case DrawTask.State.Paused:
                     return new Tuple<bool, string>(true, "Возобновить");
                 default:
-                    goto case DrawTask.State.Created;
+                    return new Tuple<bool, string>(false, "Пауза");
             }
         }
 
@@ -113,14 +108,13 @@ namespace Signal_Generator
 
         private void startOrCancelTask ()
         {
-            targetCanvas.Children.Clear();
             if (currentTask != null)
                 switch (currentTask.state)
                 {
                     case DrawTask.State.Paused:
-                        goto case DrawTask.State.Running;
                     case DrawTask.State.Running:
                         currentTask.state = DrawTask.State.Canceled;
+                        targetCanvas.Children.Clear();
                         return;
                 }
             Action newAction = () =>
diff --git a/Signal Generator/TaskWindow.xaml b/Signal Generator/TaskWindow.xaml
index fa1aef6..8b6a7a7 100644
--- a/Signal Generator/TaskWindow.xaml	
+++ b/Signal Generator/TaskWindow.xaml	
@@ -30,10 +30,10 @@
         </Grid.ColumnDefinitions>
 
         <Canvas x:Name="signalGraph_Canvas"  Background="AliceBlue" Grid.ColumnSpan="4" Margin="0,0,0,5" ClipToBounds="True"/>
-        <TextBlock x:Name="currentTime_TextBlock" Margin="0,0,5,5" Grid.Row="1" Grid.Column="1">Время выполения:</TextBlock>
+        <TextBlock x:Name="currentTime_TextBlock" Margin="0,0,5,5" Grid.Row="1" Grid.Column="1">Текущее время (t, мс):</TextBlock>
         <TextBox x:Name="currentTime_TextBox" Margin="0,0,0,5" Grid.Row="1" Grid.Column="2" IsEnabled="False" 
                  Text="{Binding Path=CurrentTime}"/>
-        <TextBlock x:Name="currentAmplitude_TextBlock" Margin="0,0,5,5" Grid.Row="2" Grid.Column="1">Текущий сигнал:</TextBlock>
+        <TextBlock x:Name="currentAmplitude_TextBlock" Margin="0,0,5,5" Grid.Row="2" Grid.Column="1">Текущая амплитуда (y(t), В):</TextBlock>
         <TextBox x:Name="currentAmplitude_TextBox"  Margin="0,0,0,5" Grid.Row="2" Grid.Column="2" IsEnabled="False" 
                  Text="{Binding Path=CurrentAmplitude}"/>
         <TextBlock x:Name="duration_TextBlock" Margin="0,0,5,5" Grid.Row="3" Grid.Column="1">Длительность (мс):</TextBlock>