Tips

Tips#

Authenticating to GitHub on https://coding.csel.io#

This is a one-time process to use the Jupyter sidebar (or gh client) to clone repositories and interact with GitHub.

1. Log in#

Open https://coding.csel.io and select the CSCI-3656/Numerical Computation tile.

2. Open a terminal#

3. Run gh auth login#

At the terminal, enter gh auth login and accept defaults for all questions. When it prints an 8-character one-time code, press enter one more time. The session should look like this:

jovyan@jupyter-jeka2967:~$ gh auth login
? What account do you want to log into? GitHub.com
? What is your preferred protocol for Git operations? HTTPS
? How would you like to authenticate GitHub CLI? Login with a web browser

! First copy your one-time code: 54E0-8759
Press Enter to open github.com in your browser... 
/usr/bin/xdg-open: 882: www-browser: not found
/usr/bin/xdg-open: 882: links2: not found
/usr/bin/xdg-open: 882: elinks: not found
/usr/bin/xdg-open: 882: links: not found
/usr/bin/xdg-open: 882: lynx: not found
/usr/bin/xdg-open: 882: w3m: not found
xdg-open: no method available for opening 'https://github.com/login/device'
! Failed opening a web browser at https://github.com/login/device
  exit status 3
  Please try entering the URL in your browser manually

4. Open login/device#

In a new browser tab, open login/device and enter the 8-character code. If configured, it may also ask for your 2-factor authentication (app on your phone). The browser should say “Congratulations, you’re all set!” and the terminal session should complete.

✓ Authentication complete.
- gh config set -h github.com git_protocol https
✓ Configured git protocol
✓ Logged in as jedbrown

5. Clone with the Git sidebar#

You can now clone with the Git sidebar or gh repo clone.

Installing IJulia locally#

1. Install Julia#

If you use a package manager, you can get Julia that way, otherwise install juliaup (the Julia version manager/dispatcher) by following the official install instructions.

2. Install IJulia#

IJulia includes the Jupyter system (which is implemented in Python) and connects it to the Julia “kernel”. You can install it by running julia, which will give you a Julia prompt:

julia>

Press the ] key to enter the packaging prompt, which will look like:

(@v1.11) pkg>

Enter add IJulia to install:

(@v1.11) pkg> add IJulia

If this completes with errors, you’re done. Pressing the backspace key will return you to a standard julia> prompt, and you can enter the notebook using

julia> using IJulia
julia> notebook()

This will open a browser window.

3. Install Plots and any other necessary packages#

Our work will sometimes use community packages that are not shipped with the Julia base system. The first of these is Plots, which you can install with

(@v1.11) pkg> add Plots
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