Henry wrote
> They were a dead end.

Can I let it be known that I don't resent being weaned off d. and D. -also
T. (Taylor's Series).
The fact that Tabula has problems is purely down to how I choose to spend
my time.
It had problems before, but with .d and .D I couldn't see how to fix them.
Now I can.

It's as if J had a primitive for ice cream. Any flavor you like – so long
as it's vanllla.

On Fri, 24 Dec 2021 at 21:43, Henry Rich <[email protected]> wrote:

> They were a dead end.  We started a foray into symbolic mathematics and
> then realized that J is a much better than C for implementing it in.  So
> we moved the calculus functions to a J addon, where interested users can
> make improvments if they like.
>
> Henry Rich
>
> On 12/24/2021 4:37 PM, P Padilcdx wrote:
> > Can I ask why they were removed? (Sorry I try to search the forums but
> couldn't come up with anything.) Seems like very useful primitives to me
> and they are still listed in NuVoc. Hopefully I’m not re-starting a war…
> > Thanks.
> >
> >> On Dec 24, 2021, at 2:53 AM, Ian Clark <[email protected]> wrote:
> >>
> >> withdrawal of d. and D.
> > ----------------------------------------------------------------------
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>
>
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