Maxwell : Julia

Julia is a high-level, high-performance, dynamic programming language. While it is a general-purpose language and can be used to write any application, many of its features are well suited for numerical analysis and computational science.

(wikipedia)

Example Code

Mandelbrot

function mandelbrot(a)
    z = 0
    for i=1:50
        z = z^2 + a
    end
    return z
end

for y=1.0:-0.05:-1.0
    for x=-2.0:0.0315:0.5
        abs(mandelbrot(complex(x, y))) < 2 ? print("*") : print(" ")
    end
    println()
end

Usage

Interactive

Julia comes with a full-featured interactive command-line REPL (read-eval-print loop) built into the julia executable. In addition to allowing quick and easy evaluation of Julia statements, it has a searchable history, tab-completion, many helpful keybindings, and dedicated help and shell modes. The REPL can be started by simply calling julia with no arguments or double-clicking on the executable. (Julia Documentation REPL)

Julia REPL

julia> string(1 + 2)
"3"

julia> rand(2, 2)
2×2 Array{Float64,2}:
 0.8833    0.329197
 0.719708  0.59114

Jupyterlab

Es gibt einen Launcher auf Maxwell JHUB zur Nutzung des Julia Kernels in Jupyterlab .

On the command line

[sternber@max-wgse001]~% module load maxwell julia 
[sternber@max-wgse001]~% julia mandelbrot.jl       
                                                                                
                                                                                
                                                                                
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                                                      ******** **   *           
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                                *         **********************************    
                           ** ***** *     **********************************    
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                           ** ***** *     **********************************    
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                                              ***   *****************           
                                                      ******** **   *           
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                                                           **