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 NGSolve Jupyter notebook extension, run
jupyter nbextension install --user --py ngsolve
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.
Using Jupyter lab¶
The command needed to install the NGSolve Jupyter lab extension depends on the system and is generated with the following code:
python3 -c 'import ngsolve.webgui; ngsolve.webgui.howtoInstallJupyterLabextension()'