Hey everyone ! First of all, i would like to thank everyone of this community for the help you give to beginners like me. Actually, i have a problem about a variable which disappear when i enter a for loop. Does anyone has an idea why ? The following code : a = 0 for i in 0:0.1:pi/2 a = a…

Julia has different rules for scoping than what you are used to. See the docs here . Solution 1: Decalre a global in the loop a = 0 for i in 1:5 global a a += 1 end Solution 2: Use a let block let a = 0 for i in 1:5 a += 1 end a end Solution 3: Use a function functio…

see here: [image] Julia's loop scope behavior differs from Fortran? General Usage EDIT: I get the exact same performance between them (and -march=native doesn’t seem to matter). Compiling with gfortran -O3 -march=native rootloop.f90 -shared -fPIC -o libloop.so gfortran -…

[image] Dailysight: beginners like me. If you stick in Jupyter or using the shift-enter in vscode, or in the REPL, things will behave as you are expecting. This is only an issue if you are running them in .jl files. For beginners, it is generally better to start with interactive usage in Ju…

In the last case, if you gonna use a file for a simple script, I would suggest developing the habit of putting the whole script inside a main function and calling it. function main() # all code that was directly in global scope end main()

Also note that if you update to Julia 1.5 or above then your example will work at the REPL as intended (except that you have not defined θ in the code you provided).

This + heavy use of Infiltrator.jl and Exfiltrator.jl is the key to doing data analysis in julia imo.

Variable which disappear in a for

General Usage

lungben November 17, 2020, 4:25pm 2

see here:

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Variable which disappear in a for

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