Jupyter kernel for FriCAS (binary)
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Jupyter kernel for FriCAS based on Frederic Peschanski's cl-jupyter.


  • FriCAS installed, SBCL version
  • SBCL 1.2.x for Linux, SBCL_HOME set!
  • Jupyter 4.1+, check with $jupyter --paths
  • libzmq4 ** (see Update section at the end!)

Note: The version of SBCL must match that of which FriCAS has been compiled! This is so because SBCL cannot load cores (AxiomSYS in this case) of different versions. See FAQ (further below) how to get type/version of FriCAS' underlying Lisp. By the way there will be no harm to your existing FriCAS installation ;)

Tested on Ubuntu 14+. If you are missing some of the items above then consult the links given to get installation information. The install.sh script is going to check all the prerequisites (except libzmq4) and will exit in case of missing items, thereby issuing an error number [n] which might help to fix some issues (see below).


Get the sources

Either by git:

git clone https://github.com/nilqed/fricas_jupyter.git

or by downloading a zip file: master. Unpack with

unzip fricas_jupyter-master.zip
Build & Install

Change to the source directory and run the install script:

jupyter notebook 
  New -> FriCAS

Error Codes

If you encounter an error (marked by a number in square brackets at a line begin) then check the corresponding hints below to resolve the issue.

[1] ... Check $PATH and/or try: $ fricas -list
[2] ... Check if AxiomSYS is in $AXIOM/bin       
[3] ... Set SBCL_HOME. Check with $echo $SBCL_HOME
[4] ... Check $PATH and/or try: $ sbcl --version
[5] ... Retry ./install.sh
[6] ... Retry ./install.sh
[7] ... Check manually with: $jupyter --paths
[8] ... Try: $jupyter kernelspec install --user ./ifricas 
[9] ... Check if $HOME/.local/bin exists and is writable.

If the hints above do not help then open an issue here, please. A log file generated by ./install.sh > install.log might be useful.


There are only two files to be installed by install.sh:

ifricas/kernel.json -> $HOME/.local/share/jupyter/kernels

iSPAD -> $HOME/.local/bin

Those can easily be removed by hand (no sudo required).

The first time the Lisp sources will be compiled by quickload, usually to a cache like:


and this may take some minutes. Subsequent installs (e.g. after upgrading Lisp files) will use the cache, what is much faster.

However, afer a successful installation the source directory will not be used anymore and can be deleted (if wished so).


  1. How to check which Common-Lisp flavour/version was used to build FriCAS?

    fricas -nox 
     )lisp (lisp-implementation-type)
     )lisp (lisp-implementation-version)
  2. How to interrupt/continue the kernel?

    To interrupt use the notebook menu entry: Kernel/Interrupt
    To continue type '0' in the console (debugger continue)
  3. How to use *debugger-hook* ?

    Enter the following in two separate cells of the notebook:
    )lisp (defun debug-ignore (c h) (declare (ignore h)) (print c) (abort))
    )lisp (setf *debugger-hook* #'debug-ignore)
    After that, any 'interrupt' only shows a message and ignores the debugger.

Docker (automated build)

There is a docker image at https://hub.docker.com/r/nilqed/fricas_jupyter/

docker pull nilqed/fricas_jupyter
docker run -p 443:8888  -t -i nilqed/fricas_jupyter jupyter notebook --ip=*
go to http://localhost:443
New -> FriCAS


In preparation.

You will find chapter 1 of the book as notebook (sections) at nb/ug.


A lot of notebooks (converted from the .input files) can be found at https://github.com/nilqed/fricas_input

Have a look into the folder nb/fricas_input/nbconvert.ipynb/ where one can render a notebook by clicking.


17-JUN-2016 : pzmq -- https://github.com/orivej/pzmq.git

Change in the size of the message structure, zmq_msg_t, in 0MQ version 4.1.x to 64 bytes from a size of 32 bytes in version 4.0.x.

17-DEC-2016 : libzmq -- https://gist.github.com/cdjhlee/b8e3c927a01b0948b42d

Note: you will need libzmq.so.4 (the script at the link above might help). libzmq5/xenial probably won't work because pzmq only supports ZeroMQ 4.0 bindings at the moment (see @link in the previous entry).

Development: iSPAD

Features: HTML export