GNU Octave is a high-level interpreted language, primarily intended for numerical computations.
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Octave on Remote Server
When I run plot commands eg.(plot(rand(1,10))). I get the following error.
PuTTY X11 proxy: wrong authorisation protocol attemptedPuTTY X11 proxy: wrong authorisation protocol attemptedPuTTY X11 ...
-1
votes
2answers
29 views
PAGER('/dev/null'): permission denied
Setting PAGER to /dev/null as suggested through the net to prevent every command being printed in stdout issues an error under OS X 10.6:
octave:1> PAGER('/dev/null');
octave:2> 1
sh: ...
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0answers
10 views
How to change Octave's gfortran lib path?
My install of octave wants to use a version of a gfortran library that no longer exists due to an upgrade.
I've symlinked the newer version to the older location to get things working, but I'd feel ...
0
votes
1answer
41 views
Exporting plot as vector graphics in Octave or matlab
I know I can export a plot in octave as a PNG but is it possible to export a plot as a vector graphic image?
The reason I ask is that some of the points on my plot are very close together and I would ...
1
vote
1answer
45 views
Switching between readline editing-modes in GNU octave
When punching away at the keyboard on the octave command line, I sometimes find that the various readline shortcuts stop working, e.g. C-a and C-e just insert ^A and ^E.
It took me a while to realize ...
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2answers
112 views
Octave's sound() function
I apologize if this has been covered before but I am required to study Octave at my university. The way they're going through the exercises, they already assume that sound() works with Octave out of ...
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0answers
294 views
Octave Install Error on Mac OSX 10.7.5 (using homebrew)
I am trying to install octave on my mac air
I have updated my homebrew, as is my XCode and its command line tools.
Here is the error I am getting:
==> Using Homebrew-provided fortran compiler.
...
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0answers
118 views
How to input 64-bit hex values in octave
I'm trying to use Octave as a programmer's calculator. I want to input a 64-bit pointer, but when I do apparently the 64-bit value gets silently truncated to 32-bit:
octave:44> ...
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3answers
3k views
GUI frontend for octave on Linux
I recently installed Octave on my Ubuntu 10.0.4 LTS box. Out of the box, this is a console only app. This makes the learning curve a bit steeper than what I would like it to be, and I am looking for a ...
2
votes
1answer
210 views
In what (small) ways can I modify Octave's compile options to enhance it without breaking it?
If the title to this question seems a bit vague, I am sorry. But I wasn't sure how to distill what I am attempting to do into a single sentence.
A few weeks back I learned that I could build and ...
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1answer
131 views
Can I install Octave under Windows 7 without admin rights?
Can I install Octave under Windows 7 without admin rights? There are similar questions on Linux, but this is about Windows 7.
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1answer
274 views
Package dependency error message when install octave on RedHat linux
Hi I tried to install octave on my RedHat 5 Linux. I typed command as
yum install octave
Then, it complained as following :
gcc-gfortran-4.1.2-44.el5.x86_64 from installed has depsolving problems
...
3
votes
2answers
3k views
Software GNUPlot not launching from GNU Octave
I'm trying to launch GNUPlot from Octave, but when I do I get the following error:
octave-3.4.0:3> plot(x,y)
dyld: Library not loaded: /usr/X11/lib/libfreetype.6.dylib
Referenced from: ...
3
votes
2answers
775 views
How do I run a Linux shell command from Octave?
I want to run commands like pdflatex and cp from an octave script. Is there a way to do that?
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votes
1answer
122 views
Conditional variables depending on whether Matlab or Octave is running the code
I have written some code for Matlab/Octave. Basically, they have the same syntax and everything, but, for example, they have different functions for optimization (linprog/glpk,quadprog/qp).
I want ...
1
vote
0answers
312 views
Installing Octave on Red Hat
I am trying to reinstall Octave on Red Hat. I currently have Octave 2.4 installed on the computer, but it is too old and some of my scripts are not running.
On the Octave wiki it says:
Octave is ...
7
votes
1answer
215 views
Why does the expression exp(i*pi) return the wrong result in GNU Octave?
I started to learn GNU Octave today, and tried the first expression given in the manual
exp(i*pi)
The result is
ans = -1.0000e+000 + 1.2246e-016i
And it seems GNU Scientific Library gives ...
1
vote
1answer
739 views
Completely remove/ uninstall Octave from my mac machine
Does anyone have any idea how I can completely remove/delete/uninstall all trace of Octave from my mac machine? Preferably via Terminal in a very swift action?
Thanks,
3
votes
3answers
1k views
3D plotting in Ubuntu
I have Ubuntu 10.10 installed and need to plot 3D graphic.
I have installed several free applications available in the repository, like QtiPlot and GNU Octave. I have found out and created the ...
2
votes
2answers
896 views
Displaying a sequence of images in Linux
I'm generating a sequence of images saved as .PNG files on disk, labelled say plot001.png, plot002.png, plot003.png. These are actually saved plots from Octave, a scientific data ...
1
vote
1answer
151 views
Octave: refer to output like %10 in Mathematica?
I want to reuse values. Is there a similar functionality as %10 of Mathematica in Octave?
octave:18> 3/log (2)
ans = 4.32808512266689
octave:19> % //how to output 4.328....
...
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1answer
955 views
Octave: Precise value in Decimal or Continuous Fraction for 729 / 4^3 [closed]
I get the approximation:
>> 729 / 4^3
11.391
Is there some function to get more precise approximation?
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3answers
988 views
Octave: how to do binary calculations?
What is the Octave NaN for? Is dot wrong delimiter?
>> bin2dec ('10.1')
ans = NaN
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2answers
1k views
GNU Octave: How to change base from DEC to BIN?
I need to do many binary calculations of the form:
10.1^(1/11) base 2
10.001^(1/11) base 2
10.0001^(1/11) base 2
10.00001^(1/11) base 2
10.000001^(1/11) base 2
...
where 1/11 base 2 = 1/3 base 10.
...
