Jupyter shortcuts and installation

12 Apr 2020

Jupyter shortcuts

Symbol	Action
y	cell format -> code
m	cell format -> Markdown
a	Add cell above
b	Add cell below
c	copy cell
v	paste cell
x	cut cell
d d	delete cell
z	undo
shift+z	redo
`<space><space>`	new line
`---`	horizontal line

Jupyter kernels in MacOS

Jupyter kernels are located in: ~/Library/Jupyter/kernels

List all kernels with: jupyter kernelspec list

Jupyter installation with C++

C++ kernel for Jupyter is available via xeus-cling. Here is the documentaiton: xeus.readthedocs.io

Download a miniconda from here: https://docs.conda.io/en/latest/miniconda.html and installed it.
Install xeus-cling with conda: conda install -c conda-forge xeus-cling
Installation of miniconda will alter your python environment to conda. I removed it from the path by only keeping source ~/.bashrc in ~/.bash_profile and removing all other lines changing the PATH to conda
Added the correct kernels:

sudo jupyter kernelspec install /Users/othmanerifki/opt/miniconda3/share/jupyter/kernels/xcpp11 --sys-prefix 
sudo jupyter kernelspec install /Users/othmanerifki/opt/miniconda3/share/jupyter/kernels/xcpp14 --sys-prefix 
sudo jupyter kernelspec install /Users/othmanerifki/opt/miniconda3/share/jupyter/kernels/xcpp17 --sys-prefix

Jupyter installation with Java

Java kernel was easier.

Install the Java Devleopment Kit (JDK) from https://www.oracle.com/java/technologies/javase-jdk14-downloads.html
Then do:

git clone https://github.com/SpencerPark/IJava.git
cd IJava/
./gradlew installKernel