diff --git a/PowerCalc.sln b/PowerCalc.sln
index 0c0f69e..deb6590 100644
--- a/PowerCalc.sln
+++ b/PowerCalc.sln
@@ -5,6 +5,11 @@ VisualStudioVersion = 16.0.29519.87
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PowerCalc", "PowerCalc\PowerCalc.csproj", "{C97F69FA-BACC-45BE-97A2-6D88535B7665}"
 EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{0E74F5E8-1B7D-4D54-A5BD-9369050A8F98}"
+	ProjectSection(SolutionItems) = preProject
+		README.md = README.md
+	EndProjectSection
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
diff --git a/PowerCalc/MainForm.Designer.cs b/PowerCalc/MainForm.Designer.cs
index 427a497..cfd43e7 100644
--- a/PowerCalc/MainForm.Designer.cs
+++ b/PowerCalc/MainForm.Designer.cs
@@ -43,6 +43,7 @@
             this.logExpandButton = new System.Windows.Forms.Button();
             this.logBox = new System.Windows.Forms.TextBox();
             this.logCollapseButton = new System.Windows.Forms.Button();
+            this.saveButton = new System.Windows.Forms.Button();
             ((System.ComponentModel.ISupportInitialize)(this.splitContainer)).BeginInit();
             this.splitContainer.Panel1.SuspendLayout();
             this.splitContainer.Panel2.SuspendLayout();
@@ -158,6 +159,7 @@
             // splitContainer.Panel1
             // 
             this.splitContainer.Panel1.AutoScroll = true;
+            this.splitContainer.Panel1.Controls.Add(this.saveButton);
             this.splitContainer.Panel1.Controls.Add(this.coordLabel);
             this.splitContainer.Panel1.Controls.Add(this.evalButton);
             this.splitContainer.Panel1.Controls.Add(this.logExpandButton);
@@ -187,15 +189,16 @@
             this.coordLabel.AutoSize = true;
             this.coordLabel.Location = new System.Drawing.Point(68, 155);
             this.coordLabel.Name = "coordLabel";
-            this.coordLabel.Size = new System.Drawing.Size(0, 13);
+            this.coordLabel.Size = new System.Drawing.Size(44, 13);
             this.coordLabel.TabIndex = 10;
+            this.coordLabel.Text = "{X=,Y=}";
             // 
             // evalButton
             // 
             this.evalButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
             this.evalButton.Location = new System.Drawing.Point(3, 150);
             this.evalButton.Name = "evalButton";
-            this.evalButton.Size = new System.Drawing.Size(59, 23);
+            this.evalButton.Size = new System.Drawing.Size(36, 23);
             this.evalButton.TabIndex = 9;
             this.evalButton.Text = "Eval";
             this.evalButton.UseVisualStyleBackColor = true;
@@ -233,6 +236,17 @@
             this.logCollapseButton.UseVisualStyleBackColor = true;
             this.logCollapseButton.Click += new System.EventHandler(this.logCollapseButton_Click);
             // 
+            // saveButton
+            // 
+            this.saveButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
+            this.saveButton.Location = new System.Drawing.Point(39, 150);
+            this.saveButton.Name = "saveButton";
+            this.saveButton.Size = new System.Drawing.Size(23, 23);
+            this.saveButton.TabIndex = 11;
+            this.saveButton.Text = "💾";
+            this.saveButton.UseVisualStyleBackColor = true;
+            this.saveButton.Click += new System.EventHandler(this.saveButton_Click);
+            // 
             // MainForm
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
@@ -271,6 +285,7 @@
         private System.Windows.Forms.Button logExpandButton;
         private System.Windows.Forms.Button evalButton;
         private System.Windows.Forms.Label coordLabel;
+        private System.Windows.Forms.Button saveButton;
     }
 }
 
diff --git a/PowerCalc/MainForm.cs b/PowerCalc/MainForm.cs
index 0f38f05..ac22d57 100644
--- a/PowerCalc/MainForm.cs
+++ b/PowerCalc/MainForm.cs
@@ -2,15 +2,24 @@
 using System;
 using System.Collections.Generic;
 using System.Drawing;
+using System.Drawing.Imaging;
 using System.Linq;
-using System.Threading;
 using System.Windows.Forms;
 
 namespace PowerCalc
 {
     public partial class MainForm : Form
     {
-        public MainForm() => InitializeComponent();
+        public MainForm()
+        {
+            InitializeComponent();
+            evalBox_MouseLeave(null, null);
+#if DEBUG
+            logExpandButton_Click(null, null);
+#else
+            logCollapseButton_Click(null, null);
+#endif
+        }
 
         private void logCollapseButton_Click(object sender, EventArgs e)
         {
@@ -130,6 +139,31 @@ namespace PowerCalc
 
         private void evalBox_MouseMove(object sender, MouseEventArgs e) => coordLabel.Text = new Point(e.X, evalBox.Height - e.Y).ToString();
 
-        private void evalBox_MouseLeave(object sender, EventArgs e) => coordLabel.Text = "";
+        private void evalBox_MouseLeave(object sender, EventArgs e) => coordLabel.Text = Point.Empty.ToString().Replace("0", "");
+
+        private void saveButton_Click(object sender, EventArgs e)
+        {
+            ImageFormat[] formats = new ImageFormat[]
+            {
+                ImageFormat.Bmp,
+                ImageFormat.Emf,
+                ImageFormat.Gif,
+                ImageFormat.Jpeg,
+                ImageFormat.Png,
+                ImageFormat.Tiff,
+                ImageFormat.Wmf
+            };
+            SaveFileDialog dlg = new SaveFileDialog
+            {
+                FileName = "Graph",
+                Filter = string.Join("|", formats.Select(s => s.ToString() + " Image|*." + (s.ToString() == "Jpeg" ? "jpg" : s.ToString().ToLower())).ToArray())
+            };
+            if (dlg.ShowDialog() == DialogResult.OK)
+            {
+                Bitmap bmp = new Bitmap(evalBox.Width, evalBox.Height);
+                evalBox_Paint(evalBox, new PaintEventArgs(Graphics.FromImage(bmp), new Rectangle(Point.Empty, bmp.Size)));
+                bmp.Save(dlg.FileName, formats[dlg.FilterIndex - 1]);
+            }
+        }
     }
 }
\ No newline at end of file