New to julia 1.0, I am running some examples and got the following errors, do you have any ideas how to solve this? Thanks. ‘’’ julia> linspace(0,2*pi,10) ERROR: UndefVarError: linspace not defined Stacktrace: [1] top-level scope at none:0 ‘’’

Linspace was deprecated. You should be able to use range(0,stop=2*pi,length=10)

[image] Tamas_Papp: range(0; stop = 5, step = 1) using PyPlot x=range(0; stop = 5, step = 1) y=x.^3 + x.^2 + x - 400 plot(x,y,linewidth=2.0,linestyle=“-”) title(“Cubic Plot”) xlabel(“X”) ylabel(“Y”) will not compile

Probably because of julia> y=x.^3 + x.^2 + x - 400 ERROR: MethodError: no method matching -(::Array{Int64,1}, ::Int64) Closest candidates are: -(::Complex{Bool}, ::Real) at complex.jl:298 -(::Missing, ::Number) at missing.jl:97 -(::Base.CoreLogging.LogLevel, ::Integer) at logging.jl:107 ...…

Yes changing the function declaration allows it to compile, but the plot is not coming up; nfo: Precompiling PyPlot [d330b81b-6aea-500a-939a-2ce795aea3ee] WARNING: using PyPlot.axes in module Main conflicts with an existing identifier. By the way, the original program worked fine in version .64 o…

You also can just replace linspace by LinRange

Hmm: linspace -> range, ok. The next problem is to figure out how to use the range: how would I have to change the following codesnippet to work: ξ = linspace(0,0.6,100) plot(ξ, zeros(ξ), "k--") For that matter, how should I think about the difference between range and LinRange?

[image] PSA: use Julia 0.7 if you are upgrading Announcements A lot of people are posting issues where their old code doesn’t work anymore on 1.0 because some function has been renamed or removed. The 0.7 release exists exactly for this reason: your old code will work on 0…

Not sure I agree: I am trying to prepare some notebooks for next semester. I expect students will install the latest version (1.3 as of today), and rightfully expect the notebooks to work. So how would I change that code snippet so ones( \xi ) will not error?

[image] ea42gh: Not sure I agree: Sorry, I linked a specific comment, not the topic, [image] PSA: use Julia 0.7 if you are upgrading Announcements A lot of people are posting issues where their old code doesn’t work anymore on 1.0 because some function has been ren…

OK. I installed julia .7 in addition to 1.3 :frowning: and figured out I need to use ξ = LinRange(0,0.6,100) plot(ξ, zero(ξ), "k--") or possibly ξ = range(0,0.6,length=100) The statement Users updating code written on older versions to work with 1.0 may be interested in using Julia 0.7, avai…

If you’re using any Julia ≥0.7, you would want to use range, else use LinRange. If you have code that is Julia ≤0.6 and you want to upgrade it to Julia 1.0, then using Julia 0.7 have warnings that tell you if functions got deprecated. Basically, just use range. The function LinRange is old and sho…

UndefVarError: linspace not defined

New to Julia

Tamas_Papp December 21, 2019, 12:44pm 26

(EDIT corrected link)

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UndefVarError: linspace not defined

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