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FIRST_STEPS.md

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Installing Julia

Important When following the following steps, be sure the version of Julia you install is version 1.7.x, where x is any integer.

While Julia can be run in the cloud (see e.g., here) we recommend installing Julia on your machine when starting out:

  • Install the julia compiler:



    Ubuntu or similar; Mac, Windows. The Julia download page is here. We strongly recommend you you add julia to your PATH, as described in the instructions, so that Julia can be launched from the terminal/console.

  • Open the downloaded application in the usual way for your OS, or run julia from a terminal/console. This launches a command-line interface for interacting with julia called the REPL.

  • At the julia> prompt, type the obligatory println("Hello world!") to check the REPL is alive and kicking.

Known issue: If launching Julia on a Mac by clicking on the app icon, you may encounter "Error: Not authorised to send Apple events to Terminal." Workaround: See this fix or add julia to your PATH so you can launch Julia from the terminal .