From: Lars Ingebrigtsen <larsi@gnus.org>
To: Pierce Wang <pierce.g.wang@gmail.com>
Cc: 33052@debbugs.gnu.org
Subject: bug#33052: 26.1; Emacs Calc Problem with sec and related trig functions
Date: Wed, 10 Jul 2019 16:20:53 +0200 [thread overview]
Message-ID: <87tvbu2coq.fsf@mouse.gnus.org> (raw)
In-Reply-To: <CALzWeGcb3_RhoZJKf2Qm4jH_EWet3q+0=8OmHSHABObOW9O9nA@mail.gmail.com> (Pierce Wang's message of "Mon, 15 Oct 2018 12:04:08 -0700")
Pierce Wang <pierce.g.wang@gmail.com> writes:
> Trying to evaluate "sec(pi/4)" in Calc's algebraic mode returns a "Wrong
> type argument" instead of returning "sec( pi / 4 )" in the Calc as it
> should. This bug is replicated with any number n (for sec(pi/n)) where n != 1.
>
> Recipe from emacs -Q:
> C-x * *
> m r
> 'sec(pi/4)
I spent half an hour trying to debug this, but the Calc code is a
mystery to me, with everything happening... somewhere else, and
functions that don't take inputs but getting stuff from the
environment. Or perhaps I just don't understand the approach, which is
pretty likely.
Does anybody else know how to debug things in Calc these days?
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
next prev parent reply other threads:[~2019-07-10 14:20 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-15 19:04 bug#33052: 26.1; Emacs Calc Problem with sec and related trig functions Pierce Wang
2019-07-10 14:20 ` Lars Ingebrigtsen [this message]
2019-07-10 17:37 ` bug#33052: 26.1; Emacs Calc Problem with sec and related trig Mattias Engdegård
2019-07-11 14:19 ` Lars Ingebrigtsen
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