Le forum de XCAS

2.0.0-12
Introduces --mpc option in commandline interface, to be used with IA Tools, like for LM Studio
https://www-fourier.univ-grenoble-alpes ... iacmcp.zip

I like this idea, it can also be expanded to small useful programs that users can look at as examples. I will think about that, thank you!

I looked at the source code, Landscape applies only to a variant of the GUI library FLTK, when FL_DEVICE is defined. This is not the case for the stock FLTK library now. I should probably remove this option from the configuration...

Great!
I will also make an attempt to modify the source of FLTK that is included in giac so that -fPIC is added to the compilation flags. Maybe this will prevent someone else to have the same issue.

Then maybe it's libfltk.a which was not built with -fPIC. It was compiled from source here, because FLTK was not found in the system. I would try one of the following options: install FLTK (1.3), the version packaged from your distribution, or try to recompile from the source with -fPIC enabled.

Strange, maybe you can fix that if you modify the Makefile in the src directory and add -fPIC at the "CXXFLAGS = ..." line, then run make clean and make again.

https://www-fourier.univ-grenoble-alpes.fr/~parisse/m307/m307juin25.pdf 1.1/ Période 2*pi (évident), x est paire, y impaire, symétrie Ox 1.2/ Définie sur [0,pi] donc pas de branche infinie 1.3/ x'=0 ssi sin(t)=sin(2t),y'=0 ssi cos(t)=cos(2t), donc point singulier ssi t et 2t ont même sinus et même c...

https://www-fourier.univ-grenoble-alpes.fr/~parisse/mat406/m406juin25.pdf 1.1/ P'=5x^4+1>0, P(x=0)<0 et P(x=2)>0 1.2/ x-P/P' 1.3/ P''=20x^3, P est convexe sur R^+, donc u0=2 convient 1.4/ pour u0=2, p:=x^5+x-3; f:=unapply(x-p/p',x); u4:=(f@@4)(2.0) renvoie 1.13705435845 p(x=u4) renvoie 0.0377... 1.5...

2025/06/19: version 2.0.0-4
Some bug fixes (normal/factor with fractional powers and many variables)
Support for integrate(x*P(x)/(exp(a*x)+1),x,0,inf)

Source and win/debian 11 binaires were updated.

métropole jour 2, https://www.apmep.fr/IMG/pdf/Metropole__spe_J2_18_06_2025_DV.pdf exo 1 proba/stats: pour cet exercice, une calculatrice scientifique suffit, sauf pour A5b/ ou ce serait fastidieux binomial_cdf(100,0.24,20,100) ou 1-binomial_cdf(100,0.24,19) exo 2: 1/ solve([3/2+2t=s,2+t=3/2+s,3-t=3...

métropole 17 juin, https://www.apmep.fr/IMG/pdf/Metro_J1_17_06_2025_DV.pdf exo 1: tout le début se fait avec une calculatrice scientifique, ensuite on gagne un peu de temps avec binomial_cdf(100,0.0714,7) donne 0.577 stddev(binomial,100,0.0714)=>S, l'écart-type vaut 2.57.. puis S^2 la variance donne...