Getting Xcas (1.9.0)

• Android,
• iOS,
• Windows,
• Mac OS X,
• Linux debian/ubuntu,
• Linux rpm (Fedora...),
• archlinux,
• Linux binaries,
• Free BSD,
• Casio fx-CG10, fx-CG20 et fx-CG50 and Fx-9750GIII, Fx-9860GIII,
• Numworks N0110,
• TI Nspire,
• Linux ARM,
• Windows CE,

What's new (large changes)?

• 1.9.0-23: English documentation new layout/fixes by Luka Marohnić
• 1.9.0-13: improvements by Luka Marohnić mainly in nlpsolve (implements now a fast and robust interior-point algorithm, alongside Nelder-Mead and differential evolution methods for derivative-free optimization) and global minimization of a continuous function on a segment (find_minimum). Integration of the 3d renderer for calculators, gives now an simpler alternative to OpenGL (useful if OpenGL inside Xcas raises bugs like black screen).
• 1.9.0-5: compatibility with new Numworks calculator bootloader
• version 1.7.0-43: changing interpreter in Xcas web is now much easier, improved Numworks connectivity
• version 1.7.0-25: improvements and fixes by Luka Marohnić in graph theory commands, better graphs inside texmacs
• version 1.7.0-19: Numworks connectivity (Windows and Linux)
• version 1.7.0-13 and 17: polynomial system solver optimizations (rational univariate representation computation and real root isolation)
• version 1.7.0: Javascript interpreter added: QuickJS
• version 1.6.17: compatibility with calculators (KhiCAS sessions for Numworks, TI nspire CX), inclusion of a MicroPython interpreter (with builtin modules for teaching), you can switch interpreter by typing python or xcas in an empty commandline.
• version 1.6.0: Improved FFT over finite field, half-GCD implementation.
• version 1.5.0 : graphtheory, signalprocessing by Luka Marohnic, LambertW function, some optimizations and improvements
• version 1.4.9 (March 2018)
  Python compatibility mode,
  improved interface for Firefox
  new optimizations commands written by Luka Marohnic,
  English user manual corrected by Jay Belanger.
• version 1.2.3 (july 2017) some speedups and bug fixes
• version 1.2.2 (december 2015) improved Groebner basis engine
• version 1.2.0 (may 2015): sparse matrices (inside tables) and a few related linear algebra algorithms.
• version 1.1.4 (february 2015): some improvements in numeric linear algebra (for example linsolve now accepts the LU decomposition as argument for faster linear system solving)
• version 1.1.3 (december 2014): New functions for sound: soundsec, playsnd, and simplification for writewav. fft now calls GSL if available and is therefore faster.
• version 1.1.2 (september 2014): Rational univariate representation for solving polynomial systems efficiently. Fast modular Groebner basis engine (already there in recent 1.1.0).
  Interval arithmetic.
• version 1.1 (july 2013): more commands for probability and statistics. Many bug fixes. Adaptive numeric integration.
• version 1.0 (november 2012): syntaxic coloration in commandlines.
• version 0.9.9: easier construction of non-prime finite fields (GF), optimizations for determinant/inverse of matrices with integer coefficients (for example det(hilbert(100)) takes 0.56s on an AMD 64 bits at 2.8_GHz).
• version 0.9.8: quadratic sieve for factoring integers from 40 to 77 digits (speed between PARI and msieve/yafu)
• version 0.9.5: lapack support
• version 0.9.4: access to matrices starting at 1 instead of 0 in Xcas mode with double-brackets, e.g. M[[1,2]]. Enlarge/Shrink program editor with F5/F6. The reference card is now installed (instead of online).
• version 0.9.3: some commands now accepts function, for example f(x):=sin(x)*x; g:=f'
• version 0.9.0:
  New item in Help->Internet: reference card
  Documentation is now translated from LaTeX using hevea instead of latex2html: size as decreased with similar rendering quality
  New algorithms implemented for GCD and factorization of multivariate polynomials, resulting in sometimes significant speedup for many simplifications.
  The windows version is compiled with the latest cygwin version (1.7), it is no more compatible with windows version older than XP.

Android

• The recommended way to run Xcas (if your smartphone is not too old) is to install Firefox for Android from Google Play, then open Xcas online offline (this will also work with the default Chrome browser, but computations are faster and 2d rendering is better with Firefox).
• On Google Play, there is a free application for tablets (does not work on some old smartphones) based on giac, named Xcas Pad, written by Leonel Hernandez.
• An interface in alpha version for Android tablets and smartphone, written by Thomas Luka. It is not yet ready for the Google play, but you can download this file on your tablet or smartphone, then use a file manager to change the extension to .apk (since the browser has changed the extension), then execute it. Or if you have the Android SDK, download the file to your host, connect your device and run the command adb install Androcas-debug.apk.
• A free app to isolate real roots of polynomial is available here. This application was written by Antonis Berkakis under the supervision of Alkiviadis G. Akritas and is offered by the University of Thessaly, Greece.

iOS (iPhone/iPad)

• PocketCAS for iPhone/iPad by Daniel Alm
• A free app to isolate real roots of polynomial is available here. This application was written by Spyros Kehagias under the supervision of Alkiviadis G. Akritas and is offered by the University of Thessaly, Greece

Xcas for Windows

• 64 bits mingw (1.9.0 2022/09), 64 bits cygwin (1.9.0 2022/09), 32 bits (1.9.0, 2022/09). The 64 bits version is incompatible with some versions of Windows, if Xcas crashes try the 32 bits version instead.
• old stable (1.2.3, March 2017): HTTP

• If you experience a black window while running 3d commands (like plane(z=0)) try to disable hardware acceleration (search with your favorite engine windows disable hardware acceleration).
• Xcas should work on all versions of Windows from Windows XP to Windows 8, but some people have reported problems with Windows 8 for 3d. If this happens to you, a partial solution is to get a linux live CD like clef agreg (F. Boisson).
• Windows 98 users should replace the 0.8.6 old stable executables inside Xcas install directory by the files of this archive.
• If you want preview support, please install Ghostscript and GSview (there are two packages too install)
• Since version 0.6.3 of Xcas for Windows, the xcas.exe binary is linked to a DLL (giac.dll), hence the standalone text version icas.exe has been added, and Cygwin developers may use giac.dll to include symbolic functions in their C++ programs.

Xcas for Mac OS X

• For Mac OS 11.6, get this package, maintained by Leonel Hernandez.
• On Mac OS X.10, it is recommended to install this version (without Qcas and with Python 2.7 module only).
• For Mac OS X.6,7,8,9(,10), get this version Click on the package, it should install in Applications.
• For OS X.11 and greater, or if you are doing 3d graphs, you can also run the browser interface (you can install it locally as explained on the page).

• Once installed, you can run Xcas from Applications, usr, bin.
• If the installer requires a password that you do not have, you can install Xcas by hand like this
  cd /Applications
  mkdir usr
  cd usr
  tar xvf /Volumes/xcas_osx6/xcas.pkg usr.pkg/Payload
  tar xvf usr.pkg/Payload
  The path to xcas.pkg may be different on your Mac.
• If you prefer to install Xcas in another folder, for example /Applications/xcas instead of /Applications/usr, you need to set two environment variables to access to the documentation and locale menus
  export XCAS_ROOT=/Applications/xcas/share/giac/
  export XCAS_LOCALE=/Applications/xcas/share/locale/
  
• The package also contains a commandline version (compiled for 64 bits, therefore faster), it can be run from a Terminal by the command /Applications/usr/bin/icas
• The package contains the giacpy module, for Python programmers. You can install it from the File, Make links menu inside Xcas, or by running from a Terminal the commands
  sudo cp -f /Applications/usr/lib/python2.7/site-packages/giacpy*egg-info /Library/Python/2.7/site-packages/
  sudo ln -sf /Applications/usr/lib/python2.7/site-packages/giacpy.so /Library/Python/2.7/site-packages/giacpy.so
• For Mac OS X.4 and 5, get this old disk image HTTP. Click on the package inside the disk image, it should install Xcas in Applications.
  Warning: If you have an old Mac PPC where Xcas for OS X.3 was already installed, follow the instructions here. There is no problem if you make a fresh install.

Xcas for Linux

Incompatibility with Unity

Note for 3-d on Linux

Fedora

Debian packages (Debian, Ubuntu: i386 32, 64 bits, ARM)

• Recent Debian/Ubuntu distributions
  Open your favorite package manager and search for xcas. The version is not necessarily the most recent one, therefore you might want to install Xcas manually.
• If you have problems with 3d commands, please check the note above.
• Ubuntu 20: download giac and giac dbgsym, then from a Terminal issue the following command
  sudo dpkg -i Downloads/giac*deb && sudo apt-get -f install
• Debian 10: download giac and dbgsym then from a Terminal issue the following command
  sudo dpkg -i Downloads/giac*deb && sudo apt-get -f install
• Other: Type the command
  sudo add-apt-repository "deb http://www-fourier.univ-grenoble-alpes.fr/~parisse/debian/ stable main"
  Or add the line
  deb http://www-fourier.univ-grenoble-alpes.fr/~parisse/debian/ stable main
  in the file /etc/apt/sources.list. On Ubuntu, replace stable by testing. Then run
  sudo apt-get update
  Now you can install or upgrade by running
  sudo apt-get install giac python-giacpy
  (python-giacpy is optionnal, it's for Python programmers support).
  If install fails, with old distributions, you can try old instead of stable in /etc/apt/sources.list and run again both commands.
  If install fails because of libpng12 dependency on Ubuntu, add
  deb http://fr.archive.ubuntu.com/ubuntu xenial main
  to /etc/apt/sources.list.
  If you do not want to get warning messages about invalid/unknown key, download the Xcas public GPG key and run the following command in a terminal from the directory where you stored the key
  sudo apt-key add xcas_public_key.gpg
  
• If you want to test the latest version, use the following line instead
  deb http://www-fourier.univ-grenoble-alpes.fr/~parisse/debian/ testing main
  
• If it does not work, try to install one or more packages as explained below.
  • all in one package (i386, 1.9.0, compiled on Ubuntu 12.04) HTTP
  • all in one package (x64, 1.9.0) HTTP
  To install type
  sudo dpkg -i *giac*.deb
• If dpkg complains about missing packages, check the package names and issue an apt-get command like
  sudo apt-get install libstdc++5
• If you have an error reporting that libreadline.so.5 is missing, install it (sudo apt-get install readline5) or if readline is already installed (e.g. version 6), type the commands
  cd /usr/lib; sudo ln -s libreadline.so.6 libreadline.so.5 ; sudo ldconfig
• Carlos Enriqe Carleos Artime made the first giac packages.

RPM (OpenSuse, Fedora, Mandriva...)

• Fedora has a package giac under tests.
• 64 bits: Open Suse 12.2 (old 1.1.0)
  For Mageia, please also check Frederic Han Xcas page.
• 32 bits: Open Suse 12.2 (old 1.1.0)

Xcas for archlinux

Binaries PC (all distributions)

• Version 1.0 for i386: here. Unarchive e.g. from /usr/local. They may require some environment variable changes
  • export LD_LIBRARY_PATH=/usr/local/lib (replace /usr/local with the actual path)
  • export XCAS_ROOT=/usr/local/bin (replace /usr/local with the actual path)
  • export XCAS_HELP=/usr/local/share/giac (replace /usr/local with the actual path)
• For recent binaries, go to Frederic Han Xcas page.
• Old binaries up to version 0.8.6: Please check the note above.
  • Linux root with internationalization support HTTP. Install as root: first edit /etc/ld.so.conf and add the two lines /usr/lib then /usr/local/lib. Now run
    cd / ; tar xvfz ~/xcas_root.tgz ; ldconfig
    After install, type
    xcas &
    If the previous link does not work, another version (updated from time to time) is available here.
  Note that these binaries do not support dynamic module only, use Debian packages above or compile the source if you need them.

KhiCAS: Giac/Xcas for Casio CG10/20/50 and Fx-9750GIII, Fx-9860GIII

KhiCAS: a CAS for your Numworks N0110 calculator

KhiCAS: Xcas and Python for the TI Nspire calculator

• Khicas for most TI Nspire CX and CX-II, For those with a so-called 240x320 screen, like CX HW-W, please use this archive.
  Copy the ndless directory from the archive into your calculator with TI connectivity kit. Run the ndless installer corresponding to your OS once. Then run khicas (math+programming in a shell) or khicaslua (math only).
  For more information on ndless, see CX or CX II
• For monochrom nspire, you can install this light version.

Xcas Linux ARM

Xcas Windows CE