Hello, I wrote anarticle about the current position of the HP50g :
http://www.calcbank.com/index.php?mod=news&ac=commentaires&id=1812
What do you think about that ?
Focus on the HP50g

01212013, 03:25 AM
Hello, I wrote anarticle about the current position of the HP50g : What do you think about that ?
01212013, 04:34 AM
Bonjour Mic, That article would most probably start differently if written by an USAmerican ;) No, no errors  but lacking that famous primary positive (marketing) attitude. d:)
01212013, 07:06 AM
I am not totally negative :)
01212013, 07:52 AM
Quote: Short and sweet. How did you get pictures of the developers?
01212013, 08:18 AM
Look at the article and click, then look again ... d#)
01212013, 08:42 AM
Sounds about right. I'm not sure ageing is an issue. Maths doesn't fundamentally change that much. In fact, my now ancient TI85 is pretty good at "modern maths"... Has anyone got a comparison between the 39g series and a 50g anywhere just out of interest?
01212013, 12:06 PM
Been a while since I've looked at the capabilities of the CAS in the classpad. If you have time, could you test these ones out? Thanks!
integrate(1/(x^2+9)^3,x)
TW Edited: 21 Jan 2013, 12:07 p.m.
01212013, 01:23 PM
General integration limits 0 and 1 ?
01212013, 05:58 PM
To see if it will recognize the series representation in that one. Comes out to pi/12 if I remember. TW
01222013, 09:18 PM
Quote:
Hi Mic, To solve the example on the HP50g just use the 'TAYLR' or 'TAYLOR0' function (on the same soft menu as 'lim') to rewrite the equation in terms of x and then take the limit. I'm not sure why the HP50g requires this additional step but the shape of the function is somewhat unique for the x^4 denominator vs trying other powers of x in the denominator. I did a little experimenting with limits close to zero on the HP50g and found that you can find an approximate answer to the example by taking the limit at x= +/ 1/100. I don't know what software/hardware you were using to verify the correct limit of 1/12 for this example but I found the TI89 gives the correct result as well as WolframAlpha. However, what was surprising to me is that if you try different denominators of increasing powers of x, such as, x^5, X^6, X^7, X^8, X^9....X^44 the TI89 fails to find a limit it reports 'undef' while the HP50g finds all these limits without the additional step noted above and agrees with WofframAlpha for the limit values. I don't think I found your article about the HP50g unless it was about the hidden menus (Easter eggs). Was that it or did I miss something? Were you trying to promote HP50g sales on Amazon? The Easter Eggs are interesting but not new. I believe they have existed in various forms from the HP48 through the HP50g. For starters check out http://groups.google.com/group/comp.sys.hp48/browse_thread/thread/a1bf7a0607cb526/65bfa1c5264fc28b?lnk=gst&q=easter+eggs#65bfa1c5264fc28b Ronald Williams
01232013, 01:58 AM
Like this :
http://www.calcbank.com/index.php?mod=news&ac=commentaires&id=1678 Edited: 23 Jan 2013, 1:58 a.m.
01232013, 07:44 AM
Quote: The comparison sounds like an interesting project.
01232013, 07:45 AM
Quote: Thanks
01232013, 10:47 PM
Regarding the easter eggs, I think HP removed some of them in the latest roms. I'm running 2.09 and I don't think the ONF4 easter eggs are present on mine. Or maybe I'm just doing something wrong when trying to activate them. Dave 
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