From maxima download page "Looking for the latest version? *Download
maxima-5.29.1.tar.gz (27.1 MB)
<http://sourceforge.net/projects/maxima/files/latest/download?source=files>";
*But I now see going into the linux directory, there is a later version.
Thanks for pointingthis out.
Dick*
*
On 07/01/2013 04:27 PM, Barton Willis wrote:
> Maybe this bug was fixed in 5.30?
>
> (%i66) build_info();
> (%o66) build_info(version="5.30.0",timestamp="2013-06-01 21:29:43",host="i686-pc-mingw32",lisp_name="GNU Common Lisp (GCL)",lisp_version="GCL 2.6.8")
>
> (%i67) int1:z*(1-z)*log(1-a^2*z*(1-z))$
>
> (%i68) integrate(int1,z);
> "Is "(a-2)*a^2*(a+2)" positive or negative?"pos;
> (%o68) (-((a^4-2*a^2-8)*log((2*a^2*z-a*sqrt(a^2-4)-a^2)/(2*a^2*z+a*sqrt(a^2-4)-a^2)))/(2*a^3*sqrt(a^2-4))-log(a^2*z^2-a^2*z+1)/2+(4*a^2*z^3-6*a^2*z^2+(-3*a^2-12)*z)/(3*a^2))/6-((2*z^3-3*z^2)*log(1-a^2*(1-z)*z))/6
>
> The error "file_search1: trgsmp.mac not found in file_search_maxima,system." makes me think your Maxima is possibly kaput?
>
> --Barton
>
> ________________________________________
> From: maxima-bounces at math.utexas.edu [maxima-bounces at math.utexas.edu] on behalf of richard noel fell [fell at brandeis.edu]
> Sent: Monday, July 01, 2013 14:02
> To: maxima at math.utexas.edu
> Subject: integration error
>
> Greetings to all -
> With maxima 5.29.1 I find the following bug:
>
> (%i1) int1:z*(1-z)*log(1-a^2*z*(1-z));
> 2
> (%o1) log(1 - a z(1 -
> z)) (1 - z) z
> (%i2) integrate(int1,z,0,1);
> subst: cannot substitute - z for operator z in expression z(1 - z)
> -- an error. To debug this try: debugmode(true);
> (%i3) int1:z*(1-z)*log(1-a^2*z*(1-z));
> 2
> (%o3) (1 - z) z log(1 -
> a (1 - z) z)
> (%i4) integrate(int1,z,0,1);
> Is a positive or negative?
>
> p;
> Is a - 2 positive or negative?
>
> n;
> file_search1: trgsmp.mac not found in file_search_maxima,system.
> #0:
> trigsimp(?_l=[-(3*a^3*log(abs(a^2*z^2-a^2*z+1))+(12*a^3*z^3-18*a^3*z^2)*log(a^2*z^2-a^2*z+1)+sqrt(4-a^2)*(6*a^2+1...)
> -- an error. To debug this try: debugmode(true);
> (%i5)
>
>
> Many thanks,
> Dick Fell
>
> --
> Richard Noel Fell
> Fisher School of Physics
> Brandeis University
> Waltham, Ma 02454
> fell at brandeis.edu
> JMJ
>
> _______________________________________________
> Maxima mailing list
> Maxima at math.utexas.edu
> http://www.math.utexas.edu/mailman/listinfo/maxima
>
>
--
Richard Noel Fell
Fisher School of Physics
Brandeis University
Waltham, Ma 02454
fell at brandeis.edu
JMJ