Hi, Le 19/01/2015 17:38, Nils Bruin a écrit :
On Monday, January 19, 2015 at 8:22:15 AM UTC-8, Dima Pasechnik wrote:On 2015-01-19, Julien Puydt <julien...@laposte.net <javascript:>> wrote:Hi, I wanted to play with maxima-in-ecl to understand how it works, but failed: from reading sage's sources I thought I was supposed to use a MEVAL function, but it failed. Here is what I did: jpuydt@cauchy:~/sage-6.4.1$ ./sage -ecl ECL (Embeddable Common-Lisp) 13.5.1 (git:UNKNOWN) Copyright (C) 1984 Taiichi Yuasa and Masami Hagiya Copyright (C) 1993 Giuseppe Attardi Copyright (C) 2000 Juan J. Garcia-Ripoll ECL is free software, and you are welcome to redistribute it under certain conditions; see file 'Copyright' for details. Type :h for Help. Top level.(require 'maxima);;; Loading #P"/home/jpuydt/sage-6.4.1/local/lib/ecl/maxima.fas" ;;; Loading #P"/home/jpuydt/sage-6.4.1/local/lib/ecl/sb-bsd-sockets.fas" ;;; Loading #P"/home/jpuydt/sage-6.4.1/local/lib/ecl/sockets.fas" ("SB-BSD-SOCKETS" "SOCKETS" "MAXIMA")here you need to go into the right namespace, or whatever it is called:(in-package :maxima)(meval "2+2")but I don't know how to compute 2+2, still :-))The maxima parser is available via the reader macro. Normally it will produce a form that evaluates too, but if you quote it, you can prevent that from happening:(require `maxima)[...](in-package :maxima)MAXIMA> #$2+2$ 4 MAXIMA> '#$x+5$ (MEVAL* '((MPLUS) $X 5)) MAXIMA> (meval '((mplus) 2 2)) 4
Ah, ha! That helps. But, let's take the following code (extracted from src/sage/interfaces/maxima_lib.py) :
from sage.libs.ecl import *
ecl_eval("(require 'maxima)")
ecl_eval("(in-package :maxima)")
ecl_eval("#$load(abs_integrate)$")
it gives me:
RuntimeError: ECL says: THROW: The catch MACSYMA-QUIT is undefined.
and if I type the same in sage -ecl:
(require 'maxima)
(in-package :maxima)
#$load(abs_integrate)$
it also gives me the same error...
So there's still something that eludes me in the ECL+Maxima pair...
Snark in #sagemath
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