If I attempt to execute a function without loading it
first, then I still can't execute the function even
after trying to load it. For example:
(%i1) fft (aa, bb);
(%o1) fft(aa, bb)
(%i2) load ("fft");
(%o2)
/usr/share/maxima/5.9.1/share/numeric/fft.lisp
(%i3) fft (aa, bb);
(%o3) fft(aa, bb)
Now contrast this --
(%i1) load ("fft");
(%o1)
/usr/share/maxima/5.9.1/share/numeric/fft.lisp
(%i2) fft (aa, bb);
arg aa to fft//ift//recttopolar//polartorect must be
floating point array
-- an error. Quitting. To debug this try
DEBUGMODE(TRUE);
The error message shows the FFT was indeed executed.
If a file defines several functions (e.g.,
.../share/vector/vect.mac) it looks like any functions
not referenced before are successfully loaded, but any
that were referenced before are not loaded.
LOAD appears to avoid clobbering any existing
variables; maybe the function-loading phenomenon
described here is an aspect of that.
Robert Dodier
2004-11-02
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Changing
(defun $fft ...)
to
(defun |$fft| ...)
makes the problem go away, I've found.
Raymond Toy
2004-11-20
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This problem no longer seems to occur with the
case-sensitive version of maxima in CVS.
Robert Dodier
2004-12-27
Logged In: YES
user_id=501686
This bug appears to be fixed by case-sensitivity stuff.
Closing this bug report.
Robert Dodier
2004-12-27
Vero
2013-11-22
Hi! I'm sorry for asking this here, but where can I find the fft file for maxima? this one you are talking about... I need it and have been searching for it around the net for some days, but I haven't been able to locate it with a mac or lisp file name.
I'm aware this discussion is from 2004, but I hope someone can help me...
Jaime E. Villate
2013-11-24
fft comes included with Maxima. You don't have to get it separately; where Maxima is installed in your disk there should be a directory share/mumeric with four files
fft-core.lisp
fft.dem
fft.lisp
fft.usg
you just have to do "load(fft);". If it does not work, perhaps you installed Maxima from a Debian package and you didn't install the separate package maxima-share?