Using Jupyter notebook

Jupyter notebooks provide an interactive way to work with Netgen/NGSolve.

If you are using Anaconda, Jupyter is already installed. Make sure to have Anaconda with Python 3.7 installed.

Using the Python package manager pip you can install Jupyter via

# Mac/Linux
pip3 install jupyter

On Windows you need to use pip instead of pip3. Due to a bug in ipykernel on Windows you need upgrade it to at least ipykernel version 5.3.2. (see https://github.com/ipython/ipykernel/issues/358 ):

# Windows
pip install --upgrade jupyter
pip install --upgrade ipykernel

To install the WebGUI Jupyter notebook extension, run

pip3 install webgui_jupyter_widgets

If you have jupyter >= 7.0.0, you are done. For older versions you need to install and enable the notebook extension:

jupyter nbextension install --user --py webgui_jupyter_widgets
jupyter nbextension enable --user --py webgui_jupyter_widgets

Now, download the first NGSolve Jupyter notebook poisson.ipynb, and start

jupyter notebook poisson.ipynb

Step though the notebook by pressing "Shift-Enter" for every cell. A separate visualization window will pop up showing the generated mesh and computed solution.