The distance between Julia and insanity is measured only in segfaults
Any sufficiently advanced programing language is indistinguishable from
Julia
+1
abstract typeA
immutable typeA1 : typeA end
immutable typeA2 : typeA end
type typeB1 end
type typeB2 end
More Julian would be to write:
transformType(T::Type{typeA1}) = typeB1
transformType(T::Type{typeA2}) = typeB2
transformType(T::Type) = error(Cannot handle type $T)
function
*Here is the code:*
*w=1;*
*γ=0.01;*
*f(x,y)= [y;-w^2*sin(x)-u*w^2*cos(x) -2γ*y];*
*for i=1:sizeof(Sx)*
*x0=Sx[i+2];*
*y0=Sy[i+2];*
*for j=1:sizeU*
*u=U[i];*
*t,NX=ODE.ode45(f,[0,0.1],[x0,y0])*
*end*
*end*
with Sx and Sy vectors of the same size, and U an other
I got stuck by an error in Julia! please I need help!
*here is the code:*
*w=1;*
*γ=0.01;*
*f(x,y)= [y;-w^2*sin(x)-u*w^2*cos(x) -2γ*y];*
*for i=1 : numberOfStates*
*x0=Sx[i+2];*
*y0=Sy[i+2];*
*for j=1:sizeU*
*u=U[i];*
*t,NX=ODE.ode45(f(x,y,u),[0,0.1],[x0,y0])*
*
It is more helpful if you can provide a self contained example that we can
run. However, I think you've been bitten by our white space concatenation.
When you define f, the second element is written
*-w^2*sin(x)-u*w^2*cos(x) -2γ*y*
*but I think that is getting parsed as*
No segfaults means zero distance?
On Tue, Mar 10, 2015 at 1:22 PM, Mike Innes mike.j.in...@gmail.com wrote:
The distance between Julia and insanity is measured only in segfaults
Le mardi 10 mars 2015 à 01:40 -0700, David van Leeuwen a écrit :
Hello,
On Friday, March 6, 2015 at 2:22:42 AM UTC+1, Tony Kelman wrote:
I suppose this is related to + and - being unary operators?
Ding ding. Unfortunately space being the horizontal
Looks like a couple things going on here:
- The error is due to a mix of hcat and vcat in the definition of f;
replacing it with either
*f(x,y)= [y;-w^2*sin(x)-u*w^2*cos(x); -2γ*y];*
or
*f(x,y)= [y, -w^2*sin(x)-u*w^2*cos(x), -2γ*y];*
will fix this error.
I predict
other errors down the line:
-
It would be helpful if you could post an example which runs with just
copy-paste into the REPL.
On Tue, 2015-03-10 at 10:55, Kacem HARIZ kacem.ha...@gmail.com wrote:
I got stuck by an error in Julia! please I need help!
*here is the code:*
*w=1;*
*γ=0.01;*
*f(x,y)=
I see the behavior on OS X. It also occurs with three println's.
| | |_| | | | (_| | | Version 0.3.7-pre+1 (2015-02-17 22:12 UTC)
_/ |\__'_|_|_|\__'_| | Commit d15f183* (21 days old release-0.3)
|__/ | x86_64-apple-darwin13.4.0
julia t = @async
Seems like you have a good answer already, but for what it’s worth I have
the following code in a package I’m developing:
# Some helpful typealiases to keep things tidy
typealias SymExpr Union(Symbol, Expr)
typealias VecSymExpr Union(Vector{Symbol}, Vector{Expr})
# Take a name and type and
in my continuing quest to understand Julia tasks, i have created the
following contrived example which does not behave as i would expect. can
anyone help explain please? thanks in advance.
julia function printfoobar()
println(foo)
println(bar)
end
printfoobar
Have a look at stagedfunction (v0.4).
I tried with the nightly build, but without success (using stagedfunction
instead of function) - however, it looks like it is the solution, maybe I
will just have to wait until this is implemented (and the syntax set).
You will need to adapt the code
On Tuesday, March 10, 2015 at 1:39:42 PM UTC-4, Stefan Karpinski wrote:
I'm not sure what that would mean – CPUs don't ship with software. Julia
will support Kinght's Landing, however, although it probably won't do so
until version 0.5.
On Tue, Mar 10, 2015 at 1:36 PM, Karel Zapfe
On Tuesday, March 10, 2015 at 12:25:20 PM UTC-4, Yuhui ZHI wrote:
Hello everyone,
I have a question: how to embed Julia into VS2013?
I have read this:
https://github.com/JuliaLang/julia/blob/release-0.3/doc/manual/embedding.rst
But I still have no idea.
I am using vs2013 in the
LLVM support for KNL is already in place. So yes, it will come quickly, but in
a released version of Julia, that is certainly no earlier than 0.5. It is also
quite likely that we need good multi-threading support to ensure a good
experience for KNL - which is also happening simultaneously.
I
Many thanks!
On Monday, March 9, 2015 at 10:24:42 PM UTC+1, Steven G. Johnson wrote:
On Monday, March 9, 2015 at 5:24:22 PM UTC-4, Steven G. Johnson wrote:
On Monday, March 9, 2015 at 5:18:52 PM UTC-4, Steven G. Johnson wrote:
Yes, I should probably define a pycall method for ColorMap.
+1 for documenting whether @async introduces a scope block. is what amit
said true?
On Saturday, July 20, 2013 at 4:23:21 AM UTC-4, Amit Murthy wrote:
My understanding is that let blocks only localize variables explicitly
specified on the first line, while @async localizes all variables.
The embedding talked about in that page is how to call Julia from C/C++
programs. While VS2013 is a C++ program, unless you have the source for it,
that doesn't really help. It may be possible to write a Julia plugin for
VS2013, however, but that would take a lot of time, effort and expertise.
On
I'm not sure what that would mean – CPUs don't ship with software. Julia
will support Kinght's Landing, however, although it probably won't do so
until version 0.5.
On Tue, Mar 10, 2015 at 1:36 PM, Karel Zapfe kza...@gmail.com wrote:
Hello:
Is it true then, that Knight's Landing will have
There is actually an open source pluging for python for VS that is developed by
MS. The whole package is VERY smooth (including debugger etc). If someone
wanted to create a julia plugin for VS, that would probably be a great starting
point. Certainly not me, though :)
From:
Try Formatting.jl? (https://github.com/lindahua/Formatting.jl)
On Wednesday, March 11, 2015 at 7:16:55 AM UTC+7, Dominique Orban wrote:
This is an old question about computed format strings, but it's still
biting me. I've been following your suggestion and I defined
print_formatted(fmt,
What about if you don't print t .
t = @async (println(foo);println(bar); println(baz));
On Wed, Mar 11, 2015 at 9:31 AM, Sam L sam.len...@gmail.com wrote:
Same thing on arch linux actually:
| | |_| | | | (_| | | Version 0.3.7-pre+15 (2015-03-02 23:43 UTC)
_/ |\__'_|_|_|\__'_| |
Baz shows up then. From OS X:
julia t = @async (println(foo);println(bar); println(baz));
foo
julia bar
julia baz
_
On Tue, Mar 10, 2015 at 9:28 PM, Amit Murthy amit.mur...@gmail.com wrote:
What about if you don't print t .
t = @async (println(foo);println(bar); println(baz));
On Wed,
And same on 0.3.6 from the PPA on Linux
| | |_| | | | (_| | | Version 0.3.6 (2015-01-08 22:33 UTC)
_/ |\__'_|_|_|\__'_| | Official http://julialang.org release
|__/ | x86_64-linux-gnu
julia t = @async (println(foo);println(bar); println(baz))
foo
Task (queued)
Works fine on Linux.
On Tue, Mar 10, 2015 at 11:28 PM, Ben Arthur bjarthu...@gmail.com wrote:
in my continuing quest to understand Julia tasks, i have created the
following contrived example which does not behave as i would expect. can
anyone help explain please? thanks in advance.
julia
Same thing on arch linux actually:
| | |_| | | | (_| | | Version 0.3.7-pre+15 (2015-03-02 23:43 UTC)
_/ |\__'_|_|_|\__'_| | Commit 0f0b136 (8 days old release-0.3)
|__/ | x86_64-unknown-linux-gnu
julia t = @async (println(foo);println(bar); println(baz))
foo
Task
Any sufficiently advanced programing language is indistinguishable from
Julia
That's so much better Paulo! [?]
On Tue, Mar 10, 2015 at 6:44 AM, Michele Zaffalon
michele.zaffa...@gmail.com wrote:
No segfaults means zero distance?
On Tue, Mar 10, 2015 at 1:22 PM, Mike Innes
Hello everyone,
I have a question: how to embed Julia into VS2013?
I have read
this:
https://github.com/JuliaLang/julia/blob/release-0.3/doc/manual/embedding.rst
But I still have no idea.
I am using vs2013 in the system of Windows10.
I have created a project and now I want to use Julia in
On Monday, 9 March 2015 19:20:11 UTC+1, Paulo Jabardo wrote:
Well, if that is the case, why not go one step further:
Any sufficiently advanced programing language is indistinguishable from
Julia
+1
I would buy that t-shirt.
Just was curious why it was not matching with the implementations in python
library. I was working on the angular momentum operators and relating stuff
from QuTiP which does similar stuff in python.
On Wednesday, March 11, 2015 at 1:23:55 AM UTC+5:30, Steven G. Johnson
wrote:
On Tuesday,
I would just shell out to the tar command and then work with the untarred
directory.
On Tue, Mar 10, 2015 at 4:05 PM, Weijian Zhang zweiji...@gmail.com wrote:
Hello,
I have a .tar.gz file. With GZip.jl, I can write code to unzip it to a
.tar file.
But how can I unpack this .tar file in
But when I give in
julia spdiagm(x, 1, length(x), length(x))
ERROR: BoundsError
in sparse at sparse/csparse.jl:50
in spdiagm at sparse/sparsematrix.jl:2133
in spdiagm at sparse/sparsematrix.jl:2141
I get the above error. Any leads on this would be great. Thanks.
You need to use
Thank you very much for the response.
But the behavior of the same in scipy is different i.e., it omits the
elements. Is this not the expected behavior ?? The same result is as
follows using scipy and numpy :
import numpy as np
import scipy.sparse as sp
m = np.arange(3, -4, -1)
t =
Hello,
I have a .tar.gz file. With GZip.jl, I can write code to unzip it to a .tar
file.
But how can I unpack this .tar file in Julia?
Thanks,
Weijian
On Tuesday, March 10, 2015 at 2:07:34 PM UTC-4, Viral Shah wrote:
LLVM support for KNL is already in place. So yes, it will come quickly,
but in a released version of Julia, that is certainly no earlier than 0.5.
It is also quite likely that we need good multi-threading support to ensure
I'm trying to create a custom distribution. I define:
immutable myDist : DiscreteMultivariateDistribution
#code
end
function _logpdf{T:Real}(d::myDist, X::AbstractVector{T})
# code
end
_pdf(d::myDist, X::AbstractVector) = exp(_logpdf(d, X))
I can succesfully create a distribution
Hello folks,
I am trying to run a little bootstrap in Julia using pmap and I am getting
the following error from each process:
fatal error on fatal error on fatal error on fatal error on fatal error on
fatal error on fatal error on fatal error on fatal error on fatal error on
fatal error on
*Input 1:*
y = 0
function foo()
y = 10
end
foo()
y
*Output 1:*
0
*Input 2:*
y = 0
for i = 1:1
y = 10
end
y
*Output 2:*
10
In the first example, y introduces a local variable.
In the second example, y is still a global variable.
This is not consistent to what the official document
Thanks! I guess I will put the return type in the calling code instead.
Nuisance though.
On Tuesday, March 10, 2015 at 2:39:37 PM UTC-7, Mauro wrote:
Sadly not. Have a look at
https://github.com/JuliaLang/julia/issues/1090
and
https://github.com/JuliaLang/julia/pull/10269
The
Le mardi 10 mars 2015 à 15:12 -0700, Shivkumar Chandrasekaran a écrit :
Thanks! I guess I will put the return type in the calling code
instead. Nuisance though.
But you shouldn't need to. Julia is able to find out what the return
type is as long as you write type-stable code. Can you give more
Your _logpdf is not the same as Distributions._logpdf, so when you define
it on ::myDist, you're not extending Distributions.jl's function. You can
either import it with import Distributions._logpdf and define it as you do
above, or define it as
function
Hello,
On Friday, March 6, 2015 at 2:22:42 AM UTC+1, Tony Kelman wrote:
I suppose this is related to + and - being unary operators?
Ding ding. Unfortunately space being the horizontal concatenation operator
means some operations parse very differently and in highly
whitespace-sensitive
Hi I am trying to run the following code but I get an error when I try to
run the model (evaluate the result variable (calling the ODE23))
the error is: Error array could not be broadcast to a common size
Does anyone have any idea why? Thanks in advance
# Load libraries
using ODE
using
This is an old question about computed format strings, but it's still
biting me. I've been following your suggestion and I defined
print_formatted(fmt, args...) = @eval @printf($fmt, $(args...))
Now I am in a situation where fmt is computed inside a function, and my
function executes in
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