Just in case you didn't know, the presentation of the new HP17bii+ is
available there:
http://www.davik.plus.com/

Arnaud

Thu, 28 Aug 2003 01:25:14 -0700, Arnaud Amiel wrote:

> Just in case you didn't know, the presentation of the new HP17bii+ is
> available there:
> http://www.davik.plus.com/
> 
> Arnaud

Nice site called Classic Calculators offering a non official anoucemed
product :-)

Nice seeing new HP Calcs products coming!

---
J.Manrique L�pez de la Fuente
Users Club from Gij�n
1077 HPCC Member
AsturLiNUX & HispaLiNUX Member

        +----------------------------------------------+
        |      Mon, 1.9.03 8:55 p.m. +1200 (NZT)       |
        +----------------------------------------------+

Hi Bruce Horrocks ! <spamblock@nodomain.nodomain.us>

1 day 17h30m ago, on Sat, 30.8.03 at 4:24 p.m. +0100, you wrote
in message ID <L55gD$OEHMU$EwHd@nodomain.nodomain.us> :

[...]
> Plus point: improves on the old 17B by including the currency
> conversion menu (CURRX) from the 19B models. But excludes
> L() from the solver :-( which is a pain since that is in
> the old 17Bii and there will be some people unable to port
> their existing formulas.

I don't have one but from remote advice on solver porting
indeed have learned that the 17BII+ solver computes
EXP(-D1^2/2) as EXP(-D1). The 18C and 17Bii I have compute
this as EXP(-(D1^2)/2). This is strange because even the
17BII+ computes D1^2/2 as (D1^2)/2 so it seems that the
precedence just gets lost in the exponent expression. I wonder
where they got the solver code from for the 17BII+?? Possibly
a third party product? It seems more like a 17B+, or 17B-?

> It avoids the recalculating i bug which is in the 12C Platinum.

Good, so we have a work-around for that - buy a 17BII+ ;-)

--
Tony Hutchins
Wellington
New Zealand

#245 In our play we reveal what kind of people we
are. Ovid

In message <11397543ROBOTLX@news.cis.dfn.de>, Tony Hutchins <th@csi.com> 
writes
>I don't have one but from remote advice on solver porting indeed have 
>learned that the 17BII+ solver computes EXP(-D1^2/2) as EXP(-D1). The 
>18C and 17Bii I have compute this as EXP(-(D1^2)/2). This is strange 
>because even the 17BII+ computes D1^2/2 as (D1^2)/2 so it seems that 
>the precedence just gets lost in the exponent expression. I wonder 
>where they got the solver code from for the 17BII+?? Possibly a third 
>party product? It seems more like a 17B+, or 17B-?

Yes, somewhat worryingly, a simple test case:

A=-B^2

Gives A=-9 for B=3 on the old HP17Bii but A=9 on the new HP17Bii+.

Oh well... :-)
-- 
Bruce Horrocks
Surrey
England
<firstname>@<surname>.plus.com -- fix the obvious for email

Oh boy ...

"Bruce Horrocks" <spamblock@nodomain.nodomain.us> wrote in message
news:RLWG$IA4w9U$Ew2W@nodomain.nodomain.us...
> In message <11397543ROBOTLX@news.cis.dfn.de>, Tony Hutchins <th@csi.com>
> writes
> >I don't have one but from remote advice on solver porting indeed have
> >learned that the 17BII+ solver computes EXP(-D1^2/2) as EXP(-D1). The
> >18C and 17Bii I have compute this as EXP(-(D1^2)/2). This is strange
> >because even the 17BII+ computes D1^2/2 as (D1^2)/2 so it seems that
> >the precedence just gets lost in the exponent expression. I wonder
> >where they got the solver code from for the 17BII+?? Possibly a third
> >party product? It seems more like a 17B+, or 17B-?
>
> Yes, somewhat worryingly, a simple test case:
>
> A=-B^2
>
> Gives A=-9 for B=3 on the old HP17Bii but A=9 on the new HP17Bii+.
>
> Oh well... :-)
> --
> Bruce Horrocks
> Surrey
> England
> <firstname>@<surname>.plus.com -- fix the obvious for email