It seems that OP() in one case returns value as quoted string, but the
quote marks are not shown, and in other case its output is earmarked
some other way, also not shown in the display. This results in strange
display, see examples below. It is especially inconvenient if the
output is used for programming. Here are two examples. In the
EXAMPLE1, the (D3),(D5) are inconsistent with what is shown in the
(D2),(D4). In the EXAMPLE2, (D3),(D5) are inconsistent with what is
shown in the (D2),(D4), also (D4),(D5) are inconsistent with (D8),(D9)
(same display, different answer). Also (C7),(D7) from the EXAMPLE1 are
inconsistent with (C7),(D7) from the EXAMPLE2.
-----EXAMPLE1-----BEGIN-----
(C1) integrate(f(x),x,a,b);
b
/
[
(D1) I f(x) dx
]
/
a
(C2) op(d1);
(D2) INTEGRATE
(C3) is(op(d1)=INTEGRATE);
(D3) FALSE
(C4) op(d1)=INTEGRATE;
(D4) INTEGRATE = INTEGRATE
(C5) is(d4);
(D5) FALSE
(C6) is(op(d1)="INTEGRATE");
(D6) FALSE
(C7) is(string(op(d1))="INTEGRATE");
(D7) TRUE
-----EXAMPLE1-----END-----
-----EXAMPLE2-----BEGIN-----
(C1) a>b;
(D1) a > b
(C2) op(d1);
(D2) >
(C3) is(op(d1)=>);
(D3) FALSE
(C4) op(d1)=>;
(D4) > = >
(C5) is(d4);
(D5) FALSE
(C6) is(op(d1)=">");
(D6) TRUE
(C7) is(string(op(d1))=">");
(D7) FALSE
(C8) op(d1)=">";
(D8) > = >
(C9) is(d8);
(D9) TRUE
(C10) bug_report();
-----EXAMPLE2-----END-----
-------------------------------------------------------------
Maxima version: 5.9.0
Maxima build date: 15:27 11/24/2003
host type: i586-pc-linux-gnu
lisp-implementation-type: CLISP
lisp-implementation-version: 2.27 (released 2001-07-17) (built 3223390905) (mem
ory 3278669292)
-------------------------------------------------------------
P.S. TEXT BELOW IS NOT ABOUT Maxima. It is about mail problems.
Could anybody suggest why do I get mail failures as below.
(Finaly it results in the "Undelivered mail")
>From MAILER-DAEMON Fri Dec 12 10:51:08 2003
Return-Path: <>
X-Original-To: alex@lan108.bitp.kiev.ua
Delivered-To: alex@lan108.bitp.kiev.ua
Received: by lan108.bitp.kiev.ua (Postfix)
id C3CA034AAF; Fri, 12 Dec 2003 10:51:07 +0200 (EET)
Date: Fri, 12 Dec 2003 10:51:07 +0200 (EET)
From: Mail Delivery System
Subject: Delayed Mail (still being retried)
To: alex@lan108.bitp.kiev.ua
MIME-Version: 1.0
Content-Type: multipart/report; report-type=delivery-status;
boundary="7E4B734AB4.1071219067/lan108.bitp.kiev.ua"
Message-Id: <20031212085107.C3CA034AAF@lan108.bitp.kiev.ua>
Status: RO
Content-Length: 2177
Lines: 59
Content-Description: Notification
Content-Type: text/plain
This is the Postfix program at host lan108.bitp.kiev.ua.
####################################################################
# THIS IS A WARNING ONLY. YOU DO NOT NEED TO RESEND YOUR MESSAGE. #
####################################################################
Your message could not be delivered for 4.0 hours.
It will be retried until it is 5.0 days old.
For further assistance, please send mail to <postmaster>
The Postfix program
<stavros.macrakis@verizon.net>: host relay.verizon.net[206.46.170.12] said: 450
Requested mail action not taken-Try later:sc011pub.verizon.net (in reply to
MAIL FROM command)
Content-Description: Delivery error report
Content-Type: message/delivery-status
Reporting-MTA: dns; lan108.bitp.kiev.ua
ArrivFinal-Recipient: rfc822; stavros.macrakis@verizon.net
Action: delayed
Status: 4.0.0
Diagnostic-Code: X-Postfix; host relay.verizon.net[206.46.170.12] said: 450
Requested mail action not taken-Try later:sc011pub.verizon.net (in reply to
MAIL FROM command)
Will-Retry-Until: Tue, 16 Dec 2003 19:49:42 +0200 (EET)
Arrival-Date: Thu, 11 Dec 2003 19:49:42 +0200 (EET)
Content-Description: Undelivered Message Headers
Content-Type: text/rfc822-headers
Received: by lan108.bitp.kiev.ua (Postfix, from userid 501)
id 7E4B734AB4; Thu, 11 Dec 2003 19:49:42 +0200 (EET)
Date: Thu, 11 Dec 2003 19:49:42 +0200
From: Alexander Vidybida <vidybida at bitp>
To: Stavros Macrakis <stavros.macrakis@verizon.net>
Subject: Re: [Maxima] broken logic
Message-ID: <20031211174942.GA3066@lan108.bitp.kiev.ua>
Reply-To: vidybida@bitp.kiev.ua
References: <20031209182533.GA27100@lan108.bitp.kiev.ua>
<001b01c3be8a$27ea80f0$8783fea9@gazi>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <001b01c3be8a$27ea80f0$8783fea9@gazi>
User-Agent: Mutt/1.4i
Organization: Bogolyubov Institute for Theoretical Physics