ericardomuten / TUM-PH2264

For tutorial class of Computational Methods in Many-Body Physics (PH2264).

Codes for the lecture "Compuational Methods in Many-Body Physics"

This repository will be updated to contain the example codes for the exercises.

Course website: https://www.groups.ph.tum.de/cmt/teaching/computational-methods/

Moodle: https://www.moodle.tum.de/course/view.php?id=85197

Git repository: https://gitlab.lrz.de/cmt-computational-physics/tutorials_2023

Scipy lectures: http://www.scipy-lectures.org/

Setup for laptops and PC

You can choose one option below:

1. Download ancaonda from https://www.anaconda.com/download
2. Download miniconda from https://docs.conda.io/en/latest/miniconda.html and install necessary packages with

conda install numpy scipy matplotlib numba

3. Google colab https://colab.research.google.com/ from web brower without any installation

Starting a python notebook

1. Open a terminal

2. Go to the directy where you keep your scripts/notebooks using cd some/directory

3. Enter jupyter notebook This should start a local server, where you can create python notbooks etc. If you close the web page, open the page http://localhost:8888/

4. Do your calculations :-)

   Ipython magic for including the plots into the notebooks:

   %matplotlib inline
   

5. Once you're done, stop the server in the terminal by pressing Ctrl-C and confirm with 'y'

Git

• open a terminal

• Get a local copy of the remote repoistory with git clone https://gitlab.lrz.de/cmt-computational-physics/tutorials_2023.git Alternatively, initialize a new repository in an exisiting folder with git init.

• write code and modify local files

• git status shows which files have been changed.

• git diff changed_script.py shows what you have changed in the given file.

• git add changed_script.py marks the file changed_script.py to be added to the next git snapshot

• git commit -m "helpful message to describe changes" to create a new "snapshot"

• git log to show a list of all snapshots.

  The first line of each "snapshot" contains a hash value (like 0d4e77a6ef3224a51f6a39c8e41a9cbd5778ca92) which can be used as reference for the snapshot (the first 8 characters of the hash are usually enough). For example to view changes of this README.md file since the first commit inside this repository, use git diff 0d4e77a6 README.md.

• git pull to fetch changes from the remote repository (if you initialized it with git clone) and merge them into your version of the code. git push is the opposite, it uploads to a remote repository.

For a 10-minute introduction, see for example https://guides.github.com/introduction/git-handbook/.