Bonjour

J'essaie de résoudre numériquement l'équation
6*cos(2*x)-2*sin(2*x)=0

Dans la console maxima, je tape

(%i1) load(mnewton);
(%o1)         /usr/share/maxima/5.13.0/share/contrib/mnewton.mac
(%i2) mnewton([6*cos(2*x)-2*sin(2*x)],[x],[0.0]);

et là, il m'insulte injustement (parce que je ne lui ait rien fait : je 
suis gentil)

Load failed for 
/usr/share/maxima/5.13.0/share/linearalgebra/load-linearalgebra-lisp-files.lisp
#0: 
solve_by_lu(eqs=[6.0-4.0*h[1]],vars=[h[1]],field=complexfield)(linearalgebra.mac
 
line 35)
#1: 
mnewton(funclist=[6*cos(2*x)-2*sin(2*x)],varlist=[x],guesslist=[0.0])(mnewton.mac
 
line 106)
  -- an error.  To debug this try debugmode(true);


La fonction bug_report() me donne :

Maxima version: 5.13.0
Maxima build date: 9:20 12/12/2007
host type: i686-pc-linux-gnu
lisp-implementation-type: GNU Common Lisp (GCL)
lisp-implementation-version: GCL 2.6.8



Est-ce que vous avez des avis ?


Merci et bonne journée
Laurent

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