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---------- Forwarded message ----------
From: G. M.-S. <lists....@gmail.com>
Date: Sun, Nov 22, 2015 at 4:34 PM
Subject: [sage-release] Bug in limit?
To: sage-rele...@googlegroups.com



Hello.

This is my first post, please be indulgent.

Is the following a bug?

Thanks in advance.

Guillermo Moreno-Socías

┌────────────────────────────────────────────────────────────────────┐
│ SageMath Version 6.9, Release Date: 2015-10-10                     │
│ Type "notebook()" for the browser-based notebook interface.        │
│ Type "help()" for help.                                            │
└────────────────────────────────────────────────────────────────────┘
sage: var('m a0')
(m, a0)
sage: x=2/5*((3/4)^m - 1)*(a0 - 1000000) + 1/5*(3*(3/4)^m + 2)*a0;x
2/5*((3/4)^m - 1)*(a0 - 1000000) + 1/5*(3*(3/4)^m + 2)*a0
sage: limit(x,m=oo)

;;;
;;; Detected access to protected memory, also kwown as 'bus or
segmentation fault'.
;;; Jumping to the outermost toplevel prompt
;;;

(Note that if x is expanded then the limit is correctly calculated.)

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