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Messages - SpiroH

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451
Site Feedback and Questions / Re: Updating the Site Banner
« on: October 07, 2013, 04:22:28 pm »
I guess some sort of animated GIF on the banner would provide you more virtual space and definitely more flexibility. Would that be too much to ask for? :-\

452
Other Calculators / Re: Calling for all RTOS developers!
« on: October 05, 2013, 10:04:38 am »
Although it looks interesting, it's somewhat annoying that most of the available web links are in chinese. Most of us are non-chinese readers and take it as a nonstarter (losing interest very quickly) what's a real shame.

453
Miscellaneous / Re: Religion Discussion
« on: October 02, 2013, 05:04:25 am »
Yeah, this 'Looking like a terrorist' idea is a very dangerous concept, indeed. Do you still remember the young brasilian electrician ('Jean Charles de Menezes') who was shot dead in London, not a long time ago (22July2005)? http://en.wikipedia.org/wiki/Death_of_Jean_Charles_de_Menezes .

454
News / Re: Scheduled downtime
« on: September 30, 2013, 05:42:37 pm »
The host is going to be going down for some maintenance at this date (with multiple timezones for ease of reading)
 9:00AM BST Friday Oct 4th, 2013
 8:00AM GMT Friday Oct 4th, 2013
 1:00AM MST Friday Oct 4th, 2013
 4:00AM EDT Friday Oct 4th, 2013
The anticipated downtime is going to be 4 hours.
This will effect eeems.ca as well.
Good Friday Omni-Fasting !

455
Computer Projects and Ideas / Re: Supersonic Ball PC
« on: September 30, 2013, 05:36:02 pm »
Fine. Can't wait to have a go! Why so much suspense? ???

456
Quote from: Lionel Debroux
And yeah, the DWIM principle (or at least, what looks like something along those lines) seem to produce many strange effects and racking up a few nerves on MoHPC and beyond.
As far as "user friendliness" is concerned, and this is definitely NOT a minor issue(!), the average student would expect the Prime to be, at least, something better and not worse than the nspire. So, in this particular respect, AFAICT, Prime seems to be a disappointment with its funky syntax (considering the main target are the students). They'll improve it, in the coming OS release, for sure, if they want to survive. :-\

457
General Calculator Help / Re: TI nspire downgrading
« on: September 30, 2013, 08:55:44 am »
Welcome James!
Hello everyone, great community you have here!
I recently purchased a TI nspire cx and I can't downgrade.
I just want to make sure there is no way to downgrade to 3.1
...
I dunno which are your intentions with OS 3.1, but if you would like to have a go on 'ndless applications', you can always try it using the available nspire emulators. ;)

458
Math and Science / Re: Maxima on Android
« on: September 30, 2013, 08:48:04 am »
I'm sorry for this necropost, but i feel it would be interesting to compare Maxima (on Android) capabilities against the much hyped 'HP Prime'. Anyone with that cross-experience?

459
...
Better said: it WAS quite interesting, until I found out all these terrible issues and problems of the used XCAS! :(
Now I'm absolutely disappointed about this HP-Prime (and its CAS), and I'll definitely stay with my good old TI-92+/Voyage 200 with its (modified) Derive CAS which is clearly better and more reliable than this 'hobby project' XCAS. ;)
I can understand your point! Probably it's just nowadays life  and we're getting older... It seems it has become a 'de facto' behaviour from many IT companies, like MS, Apple, TI and so forth. It's up to the final customer to pay both the high item's price and also look for bug corrections (which is also very expensive indeed!). This is quite a cheap (although not very honest) way to improve a product without having to allocate extra resources and money.
Please be patient, we need your (HP) help over here. ;)

460
Introduce Yourself! / Re: Hello Omni!
« on: September 28, 2013, 09:11:43 pm »
I paid the usual amount, 160ish Canadian.
Thanks. You're a lucky guy. Over here (Portugal) it still costs about 160.0 EUR (= 222.983 CAD), ~40% more expensive, yeah! It looks like we live in some sort of technological apartheid. We earn less why should we (our kids) pay a lot more. crazy, imho! Not your fault, of course. ;)

461
Another bug: Trying to differentiate the equation (2/3)(x^2+1)^(3/2) gives weird output. Here is the image:
Yeah, that's a very odd output indeed, to say the least? I wonder, have they thoroughly tested symbolic differentiation?
The problem is not the differentiation, the problem is even earlier in the interpretation of the expression (2/3)(x^2+1)^(3/2).

If you enter the same expression but with an explicit multiplication character, i.e. (2/3)*(x^2+1)^(3/2), then everything works fine.
But without this * after (2/3) this expression seems to a completely different thing, not even an usual math expression but a 'function' like f((x^2+1)^(3/2)) with '2/3' as 'name' of the function, i.e. '2/3'(.....). And that's the reason why the differentiation doesn't work for this 'function' of course!
Just try to experiment a bit with this strange expression and you'll see that is not anything you would expect - crazy indeed!

Franz

Hi Franz, long time no see. Welcome back!
Yeah, it ought to be something 'stupid' like that! I mean, no implicit times operator! Cheers,

462
Another bug: Trying to differentiate the equation (2/3)(x^2+1)^(3/2) gives weird output. Here is the image:
Yeah, that's a very odd output indeed, to say the least? I wonder, have they thoroughly tested symbolic differentiation?

463
Site Feedback and Questions / Re: Updating the Site Banner
« on: September 28, 2013, 09:07:20 am »
Hm, that particular prime screen looks kinda clumsy IMO, no idea why.
Yeah, I agree. But the idea is a good one, tho. Let's wait until DJ_O has some more spare time to improve it, he can do a lot better for sure! ;)

464
Introduce Yourself! / Re: Hello Omni!
« on: September 28, 2013, 08:53:41 am »
Welcome!
Thanks! I'm running 3.1 CX CAS and I got a model D. When I got it last June (Walmart) it had quite the layer of dust on it. ...
BTW, how much did you pay for the rusty (i mean, dusty) one? ;)

465
Delta is a quite well-user greek letter used in almost any science topic, though (math, physics, chemistry...)
You are quite right!

The problem with USA is that they still use the English system (eg miles, Farheneit, pounds) instead of the metric system (km, Celsius, kilograms) that is used almost everywhere else.
Yeah, that reminds me of the old joke: "What do you call a person that speaks two languages? Bilingual. What do you call a person that speaks one language? American."
But "The Times They Are a-Changin", i guess.



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