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From: Wes on 11 Sep 2009 13:36
In class today, I was showing a student how to graph a piece-wise
function using IFTE on his 50g. It worked fine on his (rom 2.09) but
kept failing on my 50g (rom 2.15).

Later, I tried it EMU48 using a "new" calculator using both ROMs. The
2.09 works fine, but the 2.15 gives the error message "| Error: Bad
Argument Type".

Interestingly, if you use a very simple function, such as 'IFTE
(X<1,2,3)' or 'IFTE(1,X,X^2)' it works. But something like 'IFTE
(X<1,X,X^2)' fails.

Can someone confirm if this is this a new bug introduced in 2.15?

-wes
From: Bicky-Bock on 12 Sep 2009 00:57
On 11 Sep., 19:36, Wes <wjltemp...(a)yahoo.com> wrote:
> In class today, I was showing a student how to graph a piece-wise
> function using IFTE on his 50g.  It worked fine on his (rom 2.09) but
> kept failing on my 50g (rom 2.15).
>
> Later, I tried it EMU48 using a "new" calculator using both ROMs.  The
> 2.09 works fine, but the 2.15 gives the error message "| Error: Bad
> Argument Type".
>
> Interestingly, if you use a very simple function, such as 'IFTE
> (X<1,2,3)' or 'IFTE(1,X,X^2)' it works.  But something like 'IFTE
> (X<1,X,X^2)' fails.
>
> Can someone confirm if this is this a new bug introduced in 2.15?
>
> -wes

Bug in 2.15 confirmed, if entered as programme

<< X 2. > X << X SQ >> IFTE >>

no problem.
From: John H Meyers on 12 Sep 2009 10:42
On Fri, 11 Sep 2009 23:57:11 -0500, Bicky-Bock wrote:

Re 'IFTE(X<1,X,X^2)' STEQ ERASE DRAX DRAW PICTURE

> Bug in 2.15 confirmed ["IFTE Error: Bad Argument Type"]

Was already present in 2.10, with VER -> 4.20060919
How is it in BP's version?

VER in 2.09 is 4.20060602

What's VER in 2.15?

[r->] [OFF]
From: Wes on 12 Sep 2009 15:09
On Sep 12, 5:42 pm, "John H Meyers" <jhmey...(a)nomail.invalid> wrote:
> On Fri, 11 Sep 2009 23:57:11 -0500, Bicky-Bock wrote:
>
> Re 'IFTE(X<1,X,X^2)' STEQ ERASE DRAX DRAW PICTURE
>
> > Bug in 2.15 confirmed ["IFTE Error: Bad Argument Type"]
>
> Was already present in 2.10, with VER -> 4.20060919
> How is it in BP's version?
>
> VER in 2.09 is 4.20060602
>
> What's VER in 2.15?

4.20060919 as well.

I may have to go back to 2.09 on this one. The ability to graph
piecewise functions is pretty important for me.

-wes
From: Bicky-Bock on 12 Sep 2009 15:43
On 12 Sep., 21:09, Wes <wjltemp...(a)yahoo.com> wrote:
> On Sep 12, 5:42 pm, "John H Meyers" <jhmey...(a)nomail.invalid> wrote:
>
> > On Fri, 11 Sep 2009 23:57:11 -0500, Bicky-Bock wrote:
>
> > Re 'IFTE(X<1,X,X^2)' STEQ ERASE DRAX DRAW PICTURE
>
> > > Bug in 2.15 confirmed ["IFTE Error: Bad Argument Type"]
>
> > Was already present in 2.10, with VER -> 4.20060919
> > How is it in BP's version?
>
> > VER in 2.09 is 4.20060602
>
> > What's VER in 2.15?
>
> 4.20060919 as well.
>
> I  may have to go back to 2.09 on this one.  The ability to graph
> piecewise functions is pretty important for me.
>
> -wes

HP 40gs, VER 4.20060602, IFTE(X>1,X,-X) graphs correctly.
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