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The CASIO fx-CP400 (I'll call it the Classpad) is the best modern CAS capable calculator on the market. It beats the main competition (the TI-Nspire CX CAS and HP-Prime) in a number of ways: 1. It uses regular batteries. The Nspire and Prime use rechargeable lithium batteries that aren't easily replaceable. They require recharging via a USB port which is kind of a pain if your battery dies in the middle of a test and you don't have an outlet nearby. With the Classpad, just pop in some spare AAA batteries and you're good to go. If you want to use rechargeable NiMH batteries you can still do that. 2. It has a HUGE touchscreen and a pen stylus. The Prime has a touchscreen but it is smaller and no stylus, and the Nspire doesn't even have a touchscreen (it has a clunky mousepad/button combo). It's so big you can split the screen in half and do graphing and calculations at the same time. 3. It is cheaper. Street price for the Classpad is lower than the Nspire CX CAS and Prime. In addition to the ways that it beats both of it's competitors, it is at least as good in a number of other ways: large math function library, good computer algebra system (CAS), good programming ability, easy interface. I firmly believe this is the best modern calculator for students. The only real drawback is that Casio is less popular than TI, so you would get more support from your friends with an Nspire. But I think that if you spend some time with the Classpad you'll figure it out and won't need help for most of the things a student would be doing. Note: This isn't the best calculator for everyone. Some students aren't allowed to have a CAS, and there is no non-CAS option for the Classpad like there is for the Nspire. Also, some advanced users (i.e. not students) don't need or want a fancy screen, in that case the TI-89 or HP-50G are both good choices that offer a solid CAS at a lower price.Vollständige Rezension lesen
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I am Civil Engineer and this calculator is perfect. I recommend it to anyone who is in engineering or science fields!
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Great calculator, incorporating new screen technology, such as a large color touch screen. Eyes were made for color processing, so a low resolution tochless screen doesn't cut it anymore. Funcionality wise, is capable of all the engineering calculation I require, All in all, very happy with this product.
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Thanks , everything ok
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Muy buen producto. Lo tuve que comprar por ebay ya que en Chile aun no había llegado oficialmente. Es una perfecta mejora de la classpad 300 plus y realmente me ha servido para las clases de cálculo y álgebra y para mi trabajo personal.