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TI-Nspire CAS calculador gráfica (Con pantalla táctil TouchPad)

4.0 de un máximo de 5 estrellas 1 opinión de cliente

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Número de pieza del fabricanteN2CAS/CLM/2L1
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Valoración media de los clientes 4.0 de un máximo de 5 estrellas 1 opinión de cliente
Clasificación en los más vendidos de Amazon nº62.795 en Oficina y papelería (Ver los 100 más vendidos)
Producto en desde6 de agosto de 2012
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Por Antonio TOP 500 COMENTARISTAS en 13 de diciembre de 2013
Compra verificada
Tengo la HP 50g y compré la TI-Nspire CAS para completar las cosas que la HP no tiene (hoja de cálculo decente y alguna cosilla más). Tengo que decir que la calculadora está bien en general, es rápida y su CAS es algo superior al de la HP. El inconveniente es que es muy grande y los accesos directos a las funciones y operaciones a través de teclas son muy limitados, ya que basa su funcionamiento en "menús" y para acceder a casi todo debes ir navegando entre ellos hasta encontrar lo que buscas.
El teclado contiene un apartado de letras para escribir texto o asignar variables, el problema es que no es QWERTY (debido a restricciones legales del sistema educativo americano) y por ello es más lento para introducir el texto.
El software de PC, MAC e iOS se basa en Java (multiplataforma) y está bien, pero es algo lento.

Para rapidez de uso y programas disponibles de ingeniería me quedo con la HP
Para rapidez de cálculo y uso matemático me quedo con la Texas.
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Opiniones de clientes más útiles en (beta) (Puede incluir opiniones del Programa de Recompensas de Opiniones Iniciales) 4.4 de un máximo de 5 estrellas 238 opiniones
105 de 109 personas piensan que la opinión es útil
5.0 de un máximo de 5 estrellas Wonderful 25 de mayo de 2010
Por M. Fanelli - Publicado en
Compra verificada
Call me totally impressed! I have used the TI-83/84 calculators for years but rarely the advanced features they offered. I often found them to obscure and annoying. The Nspire takes a powerful document approach that is totally different than the Ti 83/84 series.

This Nspire CAS Touchpad is quite a revelation. It took me all of an hour to understand (with the Dummies book at my side) almost all the functions it offers. The keypad is clear and obvious unlike the first versions of the Nspire. I was amazed at how much I could do with this device with so little effort. I have been using Mathematica for many of the classes I teach. The Nspire can replace Mathematica for most of the things we do in undergraduate physics and engineering courses. That is impressive.

The large screen is a bonus. The characters are clear with high resolution. The large screen means that everything you do is easier to see and analyze. The screen is adjustable but it is still a calculator screen. You need light to see it well as it is not backlit like LCD computer monitors.

Some people compare the Nspire with the Ti-89. Sorry, no contest. This Inspire runs rings around the Ti-89, a calculator I never really liked. It is faster, easier to use and read, and a joy to use. Don't waste your time with the TI-89. Putting a little time in learning the Nspire paradigm will reward you.

The Nspire comes with desktop software that duplicates the functions of the calculator. On a MacBook Pro, it installed right away without problems. There is a link included with the software that allows you to backup and update the Nspire as well as move files back and forth.

The Nspire links up with the Venier Go! and EasyLink sensors. I haven't tried this yet but will in the next week or so. We have LabPros and LabQuests for our classes, but it will be fun to try the Nspire anyway.

I have not been so impressed with a calculator since my very first HP-15C too many years ago. It's even more impressive than my first professional slide rule! I very rarely gush about a product, but this device is something I have been looking for a very long time.
4 de 4 personas piensan que la opinión es útil
4.0 de un máximo de 5 estrellas Get this over an 89 or the CX 25 de julio de 2013
Por TimNJ - Publicado en
Compra verificada
This is a great calculator. It can do almost anything. You name it, it can probably do it. (You should still do your homework though).

I've used a TI-89 in my HS senior calculus class, and I've also used a Nspire CX elseware. There's really no reason for you to get either of those calculators, in my opinion.

The 89 is over twice the price as this calculator and while it's a usable calculator, I really do like the Nspire interface better. The 89 always felt convoluted and clunky to me, and that's even after a year of using it. While the NSpire does take some getting use to, once you find your way around, you'll notice it has a lot of great features, and that it's pretty intuitive.

While the CX has a color screen and seems nice, but that's basically it. As far as functionality, you're not getting too much more. The battery life for this calculator is very good, due to its nonback-lit monochrome LCD display. The CX's color display needs significantly more power, and there's no way that I want to put "Charge calculator" on my to-do list. It's just not worth the hassle. The display on this calculator is very good by the way.

There are a few little quirks I do have with it. One being the trackpad. While it's easy to use and works well, sometimes it gets a little annoying, but you'll learn that you don't have to use the trackpad for everything.

Also, I wish the operator keys were not as small. They dedicate a large part of the calculator to a full fledged keyboard (it's not qwerty), and while that's nice for storing variables and such, I would much prefer the operator keys (+,-, *, /, trig, etc) to be more pronounced.

Otherwise, great calculator. It has a few flaws but the experience is good.. so get it.
2 de 2 personas piensan que la opinión es útil
5.0 de un máximo de 5 estrellas Amazing Calculator, Much Better Than TI-89 8 de febrero de 2016
Por Jose Gonzalez - Publicado en
Compra verificada
NOTE: This calculator is supposed to be equivalent to a TI-89.

With that being said, this calculator utterly s***s on the TI-89. Way better than the TI-89 as it has a larger screen and way more functions. Easier to use and half the price of USED TI-89's. I lost mine and I am going the purchase the color version of this one which is absolutely sick and yet still cheaper than an 89. This calculator is SAT and AP Test approved.
2 de 2 personas piensan que la opinión es útil
4.0 de un máximo de 5 estrellas A great successor to the TI-89, if you know how to use it. 11 de abril de 2013
Por Bouncy - Publicado en
Compra verificada
This calculator is functionally great. It's definitely better than the TI-89 in many ways. (Great resolution and greyscale display comes to mind at first). However, there is a pretty steep learning curve, ESPECIALLY is you are experienced with TI's other graphing calculators. The Nspire is "Different".

-Great screen. High resolution, greyscale support (for shading and geometry).

-Powerful. What can I say? It's a handheld CAS. As a successor to TI-89, it's definitely even more powerful with a few additional functions. Though this calculator looks a lot more for learners (students) than everyone who think they need something like it.

-Everything we liked about the TI-89.

-Much, much faster calculations! I remember graphing on the 89 always took ages and I hated that. This calculator completely blew me away with its speed. Even the hardest integrals on graphs took mere seconds. The tradeoff, though, is that it now takes a few seconds to start up. (Like a computer, but if you set it to hibernate, you get instant startup at the cost of battery life.)

-Math print and templates! The TI-89 could display in math print, but you have to enter in linear format. the Nspire allows input with templates and shows everything in math print, so there's less need to fiddle with the "what's the syntax for derivatives" dilemma anymore. However, it only has templates for the most commonly used operations. Those deep in the catalog are still as before, with syntax hints but no documentation on what they do.

-Steep learning curve. There are no longer intuitive, grouped menus like on the TI-89. Now everything is in the catalog menu. Although they are still grouped and alphabetized, they're nowhere as detailed as the menus before. Plus it takes quite a few keystrokes to find the correct items because now everything are in the same menu.
-More computer-like: keyboard and mouse oriented. This calculator is literally made for keyboard input. I usually find using the keyboard to key in the functions is actually much faster than finding them in the catalog. The touch pad is a nice addition, but anytime before they make them touchscreen I don't think I'll get too used to using it, because...

-Tiny, tiny controls. The touchpad is small. The number and function keys are small. The menu keys (catalogs, symbols, functions) are really small and hard to use for someone with fat fingers like me. And the alphabet keys are EXTREMELY small. (It's about the size of 1/3 grain of rice). This new keypad layout can take quite some getting used to, especially in conjunction with the new menu system. Maybe a dedicated alphabetical keyboard on a calculator was not the best idea after all.

-Computer connection requires proprietary software. The software costs more than the calculator if bought separately. And it's only licensed to one machine, no activation resets. If your computer breaks down after you install the software, then you lose the ability to connect with it forever. Unless you buy another calculator and get another copy of the software. Plus, if your teacher or test proctor knows about its "Push-to-test" feature (which temporarily hides everything stored on the calculator so you can't have access to notes and equations stored in it), you're screwed because the only ways to get it back to normal mode would be to connect it to a computer or another calculator that's unlocked. And without the software on a computer, you can't unlock it from test mode.
1 de 1 personas piensan que la opinión es útil
4.0 de un máximo de 5 estrellas Awesome tool, graphics dated 7 de julio de 2014
Por christy - Publicado en
Compra verificada
My nerdy 15-yo son loves this calculator. Personally, I find it a little difficult to use, but I only pick it up every once in a while to play with it. He seems to have no problem. It definitely requires your reading the instructions and keeping them handy. Even though he uses it daily, learning where to find and how to use a new function would be hard if you don't have the instructions. When he needed to switch to degree mode, we had a hard time finding it without the manual. The screen is black and white, which, to an iphone user, seems very archaic. It works just like it's supposed to, but in our color, high-graphic world, it seems a little dated. I think I would opt for the color screen next time if it's not terrible expensive. I'm already spending a lot for a calculator that will be used for several years, why not give a little extra for the better screen, I think.