diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index b7d09fa..203b4c8 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -14,7 +14,7 @@ jobs:
     - name: Install packages
       run: sudo apt update && sudo apt install -y git build-essential curl wget python3 python3-pip texlive texlive-pictures texlive-latex-extra pdf2svg poppler-utils netpbm imagemagick ghostscript
     - name: Install Python packages
-      run: sudo pip install sphinx sphinx-rtd-theme sphinxcontrib-tikz
+      run: sudo pip install sphinx sphinx-rtd-theme sphinxcontrib-tikz numpy scipy
     - name: Build documentation
       run: cd docs && make html
     - name: Upload math result for job 1
diff --git a/examples/.gitignore b/examples/.gitignore
index 2211df6..db04785 100644
--- a/examples/.gitignore
+++ b/examples/.gitignore
@@ -1 +1,3 @@
 *.txt
+*.pdf
+*.png