GIAC(1) General Commands Manual GIAC(1) NAME giac - computer algebra system SYNOPSIS giac [options] files icas [options] files xcas files DESCRIPTION giac is an advanced symbolic and numeric calculator. The console inter- face is named icas or equivalently giac. The corresponding GUI program is called xcas. These programs have extensive documentation. The GIAC/XCAS manual is available in Info format by invoking `info giac`, and in HTML and DVI format in /usr/share/giac/doc. One can also obtain some help about a keyword like this, from inside the program: 0>> ?gcd Returns the greatest common divisor of 2 polynomials of several variables or of 2 integers or of 2 rationals. (Intg(a) or Poly),(Intg(b) or Poly) gcd(45,75); gcd(15/7,50/9); gcd(x^2-2*x+1,x^3-1); gcd(t^2-2*t+1,t^2+t-2); gcd((x^2-1)*(y^2-1)*z^2,x^3*y^3*z+(-(y^3))*z+x^3*z-z) lcm,euler,modgcd,ezgcd,psrgcd,heugcd,Gcd The equivalent output may be retrieved by invoking (e.g.) `cas_help gcd`. OPTIONS --version Show version of program. --texmacs To call giac/icas from inside Texmacs. Users should not need to do this. --emacs To call giac/icas from inside Emacs. Users should not need to do this. --sage To call giac/icas from inside Sage. Users should not need to do this. SEE ALSO cas_help(1) AUTHORS giac is written by Bernard Parisse. https://www-fourier.ujf-greno- ble.fr/~parisse/giac.html This manual page was written by Carleos Artime <car- leos@pinon.ccu.uniovi.es> and Ximin Luo <infinity0@debian.org> for the Debian GNU/Linux system (but may be used by others). LICENSE GPLv3+ 2017-02-08 GIAC(1)
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