[Maxima-bugs] [ maxima-Bugs-3034873 ] mnewton fails with cvs maxima

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Bugs item #3034873, was opened at 2010-07-26 21:32
Message generated for change (Tracker Item Submitted) made by riotorto
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Mario Rodriguez Riotorto (riotorto)
Assigned to: Nobody/Anonymous (nobody)
Summary: mnewton fails with cvs maxima

Initial Comment:
Example taken from documentation:

(%i2) load("mnewton")$
(%i3) mnewton([2*a^a-5],[a],[1]);
Improper argument to coefmatrix:
(2.0 transpose(h ) + [ - 3.0 ])
                1
                               1
#0: solve_by_lu(eqs=(2.0*'transpose(h[1])+matrix([-3.0]))[1],vars=[h[1]],field=complexfield)(mnewton.mac line 51)
#1: mnewton(funclist=[2*a^a-5],varlist=[a],guesslist=[1])(mnewton.mac line 113)
 -- an error. To debug this try: debugmode(true);



But other examples from documentation work as expected:

(%i5) mnewton([2*3^u-v/u-5, u+2^v-4], [u, v], [2, 2]);
(%o5)          [[u = 1.066618389595407, v = 1.552564766841786]]
(%i6) mnewton([x1+3*log(x1)-x2^2, 2*x1^2-x1*x2-5*x1+1],
                        [x1, x2], [5, 5]);
(%o6)         [[x1 = 3.756834008012769, x2 = 2.779849592817897]]


(%i7) build_info();

Maxima version: 5.21post
Maxima build date: 21:2 7/26/2010
Host type: i686-pc-linux-gnu
Lisp implementation type: CLISP
Lisp implementation version: 2.44.1 (2008-02-23) (built 3476002983) (memory 3489159770)

--
Mario

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