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I have installed octave with the following commands:

sudo add-apt-repository ppa:picaso/octave
sudo apt-get install octave

Then from octave I used the following command:

pkg install -forge symbolic

I got the following error:

configure: error: SymPy version 0.7.5 or later is required
checking for sort... /usr/bin/sort
checking for GNU coreutils... yes
checking for python... /usr/bin/python
checking python module: sympy... yes
checking for SymPy version... 0.7.4.1
checking for gawk... gawk
pkg: error running the configure script for symbolic.
error: called from 'configure_make' in file /usr/share/octave/4.0.0/m/pkg/private/configure_make.m near line 79, column 9

I installed python sympy with:

sudo apt-get install python-sympy

I restarted the operating system and tried again but still the same error.

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4
  • As it says, SymPy version 0.7.5 or later. python-sympy is 0.7.4.1. You might have to do pip install --user sympy or something.
    – muru
    Feb 22, 2016 at 15:28
  • I got sudo: pip: command not found
    – Ammar Hussein
    Feb 22, 2016 at 16:37
  • So install pip and try again.
    – muru
    Feb 22, 2016 at 16:38
  • i got E: Unable to locate package pip
    – Ammar Hussein
    Feb 23, 2016 at 17:26

2 Answers 2

Reset to default
9

I just hit the same problem. The solution is to check if you have pip

sudo apt-cache policy python-pip

which should return either:

python-pip:
  Installed: (none)
  Candidate: 1.5.4-1ubuntu3
  Version table:
     1.5.4-1ubuntu3 0
        500 http://us.archive.ubuntu.com/ubuntu/ trusty-updates/universe amd64 Packages
     1.5.4-1 0
        500 http://us.archive.ubuntu.com/ubuntu/ trusty/universe amd64 Packages

meaning it isn't installed. Or:

python-pip:
  Installed: 1.5.4-1ubuntu3
  Candidate: 1.5.4-1ubuntu3
  Version table:
 *** 1.5.4-1ubuntu3 0
        500 http://us.archive.ubuntu.com/ubuntu/ trusty-updates/universe amd64 Packages
        100 /var/lib/dpkg/status
     1.5.4-1 0
        500 http://us.archive.ubuntu.com/ubuntu/ trusty/universe amd64 Packages

if it is installed. If not installed run:

sudo apt-get install python-pip

Now you can run pip to get the new sympy

pip install --user sympy

Finally back to octave to run

pkg install -forge symbolic

or

pkg install /PATH/YOU/DOWNLOADED/TO/symbolic-2.2.4.tar.gz

if you downloaded the tar of the version you need.

Last and final step: Each time your run octave, you need to load the symbolic package,

pkg load symbolic

or you can put this command in your ~/.octaverc.

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5
  • one more thing when i write syms('s') i get error: 'syms' undefined near line 1 column 1
    – Ammar Hussein
    Mar 18, 2016 at 19:35
  • Each time you open octave you need to load the package in: pkg load symbolic
    – Julian Stirling
    Mar 20, 2016 at 20:41
  • ok but what should i use to make laplace transformation?
    – Ammar Hussein
    Mar 21, 2016 at 20:01
  • 1
    We are getting very off topic here. I would suggest asking these questions in another forum, I will answer this one last question, First set t to by symbolic with syms('t'), then run a Laplace transform on an equation in terms of t such as H=laplace(sin(t))
    – Julian Stirling
    Mar 22, 2016 at 5:29
  • Ok so i did all this but still get errors:Symbolic pkg v2.9.0: Traceback (most recent call last): File "<stdin>", line 28, in <module> AttributeError: '_PrintFunction' object has no attribute 'globals' Traceback (most recent call last): File "<stdin>", line 1, in <module> File "<stdin>", line 12, in octoutput_drv File "<stdin>", line 54, in octoutput and more that i cant put here ...
    – YourHelper
    Jun 6, 2021 at 18:42
1

Run

sudo apt-get install octave-symbolic
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1
  • 1
    i run this comment success. problem not solved.
    – Morteza j8
    Mar 15, 2019 at 10:19

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