gibson:teaching:fall-2016:math753:installing-julia
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gibson:teaching:fall-2016:math753:installing-julia [2016/08/31 09:04] gibson [Julia notebooks] |
gibson:teaching:fall-2016:math753:installing-julia [2016/09/01 07:23] (current) gibson [Run Julia on JuliaBox] |
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| To that end, my plan for using Julia on the Kingsbury N129 computers is for students to download and install the Julia binaries for Windows into a folder on a USB stick. I personally don't know much about Windows, so this will be a bit of an in-class experiment. If it doesn't go well, I'll get Academic Technologies to install Julia directly on the Kingsbury N129 computers. | To that end, my plan for using Julia on the Kingsbury N129 computers is for students to download and install the Julia binaries for Windows into a folder on a USB stick. I personally don't know much about Windows, so this will be a bit of an in-class experiment. If it doesn't go well, I'll get Academic Technologies to install Julia directly on the Kingsbury N129 computers. | ||
| - | ===== Run Julia on JuliaBox ===== | + | ===== Using JuliaBox ===== |
| If you have a [[https://accounts.google.com/signup|Google account]] you can run Julia on [[https://www.juliabox.com/]]. Just log on with your Google ID. | If you have a [[https://accounts.google.com/signup|Google account]] you can run Julia on [[https://www.juliabox.com/]]. Just log on with your Google ID. | ||
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| - | ====== Julia notebooks ====== | ||
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| - | A Julia notebook is a system that combines mathematical text, executable Julia code, and graphical output within a web browser. If you have Julia running on a laptop or UNH computer, you can start a notebook as follows | ||
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| - | **1.** Download a Julia notebook file to your computer. Let's start with notebooks from [[http://sistemas.fciencias.unam.mx/~dsanders/|David Sanders]]' [[https://github.com/dpsanders/hands_on_julia|Hands-on Julia]] tutorial. You can downlad them from the previous link or get them here: | ||
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| - | * {{:gibson:teaching:fall-2016:math753:hands_on_julia:1._numbers_variables_and_basic_functions.ipynb|1. Numbers, variables and basic functions.ipyn}} | ||
| - | * {{:gibson:teaching:fall-2016:math753:hands_on_julia:2._iteration_-_ranges_vectors_and_conditionals.ipynb|2. Iteration - ranges, vectors and conditionals.ipynb}} | ||
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| - | **2.** Start the Julia REPL by clicking the executable or directly from the command line. | ||
| - | <code> | ||
| - | _ | ||
| - | _ _ _(_)_ | A fresh approach to technical computing | ||
| - | (_) | (_) (_) | Documentation: http://docs.julialang.org | ||
| - | _ _ _| |_ __ _ | Type "?help" for help. | ||
| - | | | | | | | |/ _` | | | ||
| - | | | |_| | | | (_| | | Version 0.4.6 (2016-06-19 17:16 UTC) | ||
| - | _/ |\__'_|_|_|\__'_| | Official http://julialang.org/ release | ||
| - | |__/ | x86_64-unknown-linux-gnu | ||
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| - | julia> | ||
| - | </code> | ||
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| - | **3.** At the Julia prompt, type ''Pkg.add("IJulia")''. This tells Julia to download and install the IJulia notebook software onto the computer. | ||
| - | |||
| - | <code julia> | ||
| - | julia> Pkg.add("IJulia") | ||
| - | INFO: Nothing to be done | ||
| - | INFO: METADATA is out-of-date — you may not have the latest version of IJulia | ||
| - | INFO: Use `Pkg.update()` to get the latest versions of your packages | ||
| - | julia> | ||
| - | </code> | ||
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| - | **4.** At the Julia prompt, type ''Pkg.update()''. This tells Julia to download and install any required software updates. This might take a while and print out lots of download & install information. | ||
| - | |||
| - | <code> | ||
| - | julia> Pkg.update() | ||
| - | INFO: Updating METADATA... | ||
| - | INFO: Updating cache of ColorTypes... | ||
| - | INFO: Updating cache of BinDeps... | ||
| - | INFO: Updating cache of ZMQ... | ||
| - | INFO: Updating cache of IJulia... | ||
| - | INFO: Updating cache of URIParser... | ||
| - | INFO: Updating cache of Conda... | ||
| - | INFO: Updating cache of HttpCommon... | ||
| - | ....and many more such messages... | ||
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| - | julia> | ||
| - | </code> | ||
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| - | **5.** At the Julia prompt, type ''using IJulia''. This tells Julia to load the IJulia module into your active Julia session. | ||
| - | <code> | ||
| - | julia> using IJulia | ||
| - | INFO: Recompiling stale cache file /home/gibson/.julia/lib/v0.4/IJulia.ji for module IJulia. | ||
| - | INFO: Recompiling stale cache file /home/gibson/.julia/lib/v0.4/ZMQ.ji for module ZMQ. | ||
| - | INFO: Recompiling stale cache file /home/gibson/.julia/lib/v0.4/Nettle.ji for module Nettle. | ||
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| - | julia> | ||
| - | </code> | ||
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| - | **5.** At the Julia prompt, type ''notebook()''. This tells Julia to start an IJulia notebook in a browser, either starting up a new browser, if you don't have one running, or as a new tab in an existing browser. | ||
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| - | <code> | ||
| - | julia> notebook() | ||
| - | </code> | ||
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| - | The browser window should look like this, listing the Julia notebooks you downloaded. | ||
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| - | {{ :gibson:teaching:fall-2016:math753:hands_on_julia:jupyter1.jpg?800 |}} | ||
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| - | **6.** Click on "Numbers, variables, and basic functions.ipynb" in the browser. That'll start the interactive Julia notebook session. | ||
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| - | {{ :gibson:teaching:fall-2016:math753:hands_on_julia:jupyter2.jpg?800 |}} | ||
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| - | **7.** At this point you can click on and modify anything in the Julia notebook. Try clicking on the line that read ''typeof(10)'' and then hitting "shift-return" or "shift-enter" to execute the ''typeof(10)'' statement. i.e. to make Julia evaluate the expression ''typeof(10)'' and respond with the result. | ||
gibson/teaching/fall-2016/math753/installing-julia.1472659483.txt.gz · Last modified: 2016/08/31 09:04 by gibson
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