Message-ID: <16399.62534.950210.629904@gargle.gargle.HOWL>
Date: 2004-01-22T16:03:18Z
From: Martin Maechler
Subject: derivative of atan(x) and similar functions
In-Reply-To: <200401221552.32057.kkr@dfu.min.dk>
>>>>> "Kasper" == Kasper Kristensen <kkr at dfu.min.dk>
>>>>> on Thu, 22 Jan 2004 15:52:32 +0100 writes:
Kasper> I have added the differentiation rules for asin,
Kasper> acos and atan to the file deriv.c. Please let me
Kasper> know where to send it.
Wow, that's a quick response,
thank you very much!
(Kasper has sent the file to me in the mean time).
I'll try to merge it into R-devel (where it deriv.c has been
improved in the initialization part).
Martin