diff --git a/.gitignore b/.gitignore
index 6818798..d32855e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,4 +20,7 @@ venv/
 
 # OS generated files
 .DS_Store
-Thumbs.db
\ No newline at end of file
+Thumbs.db
+
+# Other files
+controlpts.txt
\ No newline at end of file
diff --git a/lab1/README.md b/lab1/README.md
index 2adda26..c62a0c7 100644
--- a/lab1/README.md
+++ b/lab1/README.md
@@ -10,6 +10,8 @@ I use `uv` to create a virtual environment for this project. You can synchronize
 uv sync
 ```
 
+`uv` is not the only option, you can run this program in any Python environment with the required dependencies installed. The main dependencies are listed in `pyproject.toml`.
+
 ## Run the Code
 To run the interactive Bezier curve editor, execute the following command in your terminal:
 
@@ -25,6 +27,7 @@ For example, to create a new Bezier curve with 5 control points, run:
 ```bash
 uv run ibezier.py 5
 ```
+
 To load control points from a file named `control_points.txt`, run:
 
 ```bash
@@ -33,4 +36,4 @@ uv run ibezier.py control_points.txt
 
 ## Statement of AI Usage
 
-I use Github Copilot's Auto Completion feature to help me write code and README faster. I ask Gemini to help me to debug GUI issues.
+I use `Github Copilot`'s Auto Completion feature to help me complete code lines and README faster. I ask `Gemini` to help me to debug GUI issues.
diff --git a/lab1/bezier_circle.png b/lab1/bezier_circle.png
new file mode 100644
index 0000000..d7097d2
Binary files /dev/null and b/lab1/bezier_circle.png differ
diff --git a/lab1/bezier_figure8.png b/lab1/bezier_figure8.png
new file mode 100644
index 0000000..57213a8
Binary files /dev/null and b/lab1/bezier_figure8.png differ
diff --git a/lab1/bezier_figures.txt b/lab1/bezier_figure8.txt
similarity index 100%
rename from lab1/bezier_figures.txt
rename to lab1/bezier_figure8.txt
diff --git a/lab1/ibezier.py b/lab1/ibezier.py
index 9146179..b0f6e00 100644
--- a/lab1/ibezier.py
+++ b/lab1/ibezier.py
@@ -21,7 +21,7 @@ def ibezier(inputA):
     global num_sample
     global curve_degree, is_subdivided # add for bezier
 
-    # Compute a point on the Bezier curve at parameter t using de Casteljau's algorithm.
+    # de Casteljau's algorithm.
     # points: list of tuples/lists [(x0,y0), (x1,y1), ...]
     # Returns: (x, y) coordinates on the curve
     def deCasteljau(points, t):