# 49G/49G+/50G BUG - SIGMA Funtion - Hewlett Packard

This is a discussion on 49G/49G+/50G BUG - SIGMA Funtion - Hewlett Packard ; Hi all, I found other 49G/49G+/50G bug: I have the array: MTR = [[ 1 2 3 ] [ 4 5 6 ] [ 7 8 9 ]] I need to solve: 'SIGMA(m=1,3,SIGMA(n=m,3,MTR(m,n)))' 49G/49G+/50G Retunrs: 'MTR(m,1.)+(MTR(m,2.)+MTR(m,3.))+(MTR(m, 2.)+MTR(m,3.))+MTR(m,3.)' the 48G/GX returns: ...

# Thread: 49G/49G+/50G BUG - SIGMA Funtion

1. ## 49G/49G+/50G BUG - SIGMA Funtion

Hi all, I found other 49G/49G+/50G bug:

I have the array:

MTR =
[[ 1 2 3 ]
[ 4 5 6 ]
[ 7 8 9 ]]

I need to solve: 'SIGMA(m=1,3,SIGMA(n=m,3,MTR(m,n)))'

49G/49G+/50G Retunrs: 'MTR(m,1.)+(MTR(m,2.)+MTR(m,3.))+(MTR(m,
2.)+MTR(m,3.))+MTR(m,3.)'

the 48G/GX returns: 26 = (1+2+3)+(5+6)+(9)

Try it!

Note: SIGMA = SIGMA SYMBOL

-d@nt3.
Lima/Peru

2. ## Re: 49G/49G+/50G BUG - SIGMA Funtion

On Thu, 24 Apr 2008 00:21:57 -0500:

> 49G/49G+/50G bug:

[[ 1 2 3 ]
[ 4 5 6 ]
[ 7 8 9 ]] 'MTR' STO

'\GS(m=1,3,\GS(n=m,3,MTR(m,n)))'

> 48G/GX: 26 = (1+2+3)+(5+6)+(9)

> 49G/49G+/50G [as of ROM 2.09]
> 'MTR(m,1.)+(MTR(m,2.)+MTR(m,3.))+(MTR(m,2.)+MTR(m, 3.))+MTR(m,3.)'

Related:
http://bugs.hpcalc.org/long_list.cgi?buglist=229

But it is fixed in 2.10

[r->] [OFF]

3. ## Re: 49G/49G+/50G BUG - SIGMA Funtion

On Apr 24, 3:21 pm, dea...@yahoo.es wrote:
> Hi all, I found other 49G/49G+/50G bug:
>
> I have the array:
>
> MTR =
> [[ 1 2 3 ]
> [ 4 5 6 ]
> [ 7 8 9 ]]
>
> I need to solve: 'SIGMA(m=1,3,SIGMA(n=m,3,MTR(m,n)))'
>
> 49G/49G+/50G Retunrs: 'MTR(m,1.)+(MTR(m,2.)+MTR(m,3.))+(MTR(m,
> 2.)+MTR(m,3.))+MTR(m,3.)'
>
> the 48G/GX returns: 26 = (1+2+3)+(5+6)+(9)
>
> Try it!
>
> Note: SIGMA = SIGMA SYMBOL
>
> -d@nt3.
> Lima/Peru

is there any other or another BUG found over in Lima?Peru?

4. ## Re: 49G/49G+/50G BUG - SIGMA Funtion

Hi all,

Hi John H Meyers you are right, the SIGMA bug was found two years ago.

I am re-writting a User-RPL manual and I will have to change my
example about the double SIGMA funtion, for now.

-d@nt3.
Lima/Peru

Bug #1:
49G/49G+/50G BUG - Tagged object in negative form (Lima/Peru)

5. ## Re: 49G/49G+/50G BUG - SIGMA Funtion

On 2008-04-25 01:03:16 +1000, deachp@hotmail.com said:

> Hi all,
>
> Hi John H Meyers you are right, the SIGMA bug was found two years ago.

and fixed a while ago to.

--
They who would give up an essential liberty for temporary security,
deserve neither liberty or security (Benjamin Franklin)

6. ## Re: 49G/49G+/50G BUG - SIGMA Funtion

Hello,

> and fixed a while ago to.
> upgrade to 2.10 or higher

Now where do we get ROM #2.10 ?

The support site from HP still shows the ROM upgrade from August,
11th, 2006.

Best wishes,
Andreas

7. ## Re: 49G/49G+/50G BUG - SIGMA Funtion

John H Meyers wrote:
> On Thu, 24 Apr 2008 00:21:57 -0500:

....
> But it is fixed in 2.10
>
>
> [r->] [OFF]

Here is the response I got:
"Thank you for contacting Hewlett-Packard.
This is in response to your e-mail regarding the HP 50g Graphing
Calculator.
To my knowledge 2.10 has not been released. Unfortunately posting the
code for the 50g rom update is beyond my support boundaries.
Sincerely,
HP Email Support"

A petition perhaps? Looks like JYA will have to get involved somehow.
Just noticed the smiley face; sarcasm??

Thanks, Arthur

8. ## Re: 49G/49G+/50G BUG - SIGMA Funtion

On Thu, 24 Apr 2008 10:34:13 -0500, JYA wrote:

>> the SIGMA bug was found two years ago.

> and fixed a while ago too;
> upgrade to 2.10 or higher

Great!

When's 2.11 coming?

Will it have BP's next version of Geometry and spreadsheet?

Will it give HP an "Edge"?

Best wishes.

..

9. ## Re: 49G/49G+/50G BUG - SIGMA Funtion

Hi

On 2008-04-25 02:06:46 +1000, arthurfordandzaphod@gmail.com said:
> A petition perhaps? Looks like JYA will have to get involved somehow.
> Just noticed the smiley face; sarcasm??

As if HP cares about what I'm saying now.

2.10 has been released and passed all regression tests over 2 years ago now
There's no reason for them not to release it

--
They who would give up an essential liberty for temporary security,
deserve neither liberty or security (Benjamin Franklin)