Casio fx-9860GII Graphing Calculator, Black

I bought this as a gift for my daughter and she loves it, she says she didn't understand how she went through high school without it. She's studying computer science and she says this is the best tool she has had to solve her math problems.Great power efficiency, the batteries last a long time in a daily basis use.Overall it is a great instrument, an useful tool for engineering students. At first hand it seems quite complicated to handle, but first impression doesn't last much. It has nice graphics and neat programs, with a large variety of programs and methods, and you can even program them yourself with basic programming skills.Pros: It is somewhat complete, has nice graphics tools and capabilities, the battery last long, it is programmable and has great alternatives for math writings forms. It has all basics and a large variety of methods, and you can find on internet a lot of programs for physics, economics, electrical solving, probabilistic and othersCons: It doesn't have much memory so you can't have many methods programs at once at the same time, meaning if you want to have the electrical circuits solver program and a Lagrange or New-Raph solver, or Gauss or Thevening among others, you have to choose one at the time because it won't be able to storage them all. And there are a few methods missing like Laplace transform, Inverse Laplace, Integral Asymptotics, Chrombach alpha and other advance methods in math, calculus and probabilistic. But the price is excellent

Great Product! Very easy to use. Awesome Functionality.This is one of the best education investments that i have ever made. Very happy with the purchase. The Calculator is simply great. I understand that in North America teachers and books only uses TI Calculators because is the tool that they have been using for years. Otherwise here in South America most of the High Schools/Universities uses Casio. I use to work with a Casio Graphing FX-7400 for 7 years and was really happy with it. Like my old Casio this new also do the graphing but it does twice as fast!. The FX-9860 Gii is a beast!!. Super fast calculations. The fact that comes with screen light are really nice!. Love the fact that come with 4 size AAA batteries so there is no need to recharge every week like TI or HP color screen calculators. I highly recommend it. Great Price Great Value. Thank you to Casio for the great work building this beast!.

Although it took a little getting used to from my old ti-84, with the help of a few YouTube tutorials, this bad boy carried me through linear algebra and calc based physics. I appreciated how much nicer matrices appeared on this screen, and passing them between multiple functions. I wish copying was a little simpler, but you can chain together a number of equations with this and in case you mess up one number, you can quickly go back, change it, and get the final result still. Also it is definitely faster than my old ti-84 was, albeit that's not a fair comparison. Just know you won't always get support since many other people use ti due to it being the standard.

I could not decide between this calculator and the TI-84 Plus CE, so I bought both. I found the fx-9860GII to be a more competent calculator for undergraduate mathematics for the following reasons;1. It gives exact answers for trig and square root problems (the TI only gives decimals). This is my #1 biggest problem with the TI84 Plus CE.2. You do not need to open a seperate app to graph inequalities. The TI requires you to change to a different app, which is very clunky.3. Handles fractions *way* better --> simplification, dedicated fraction key, fraction/decimal conversions.4. You can use any letter of the alphabet to name a matrix (this is handy because it better supports matrix naming conventions). The TI only supports some letters.The only issue I found with the fx-9860GII is the fact that fractional values displayed inside a matrix are *displayed* as decimal (but thankfully stored a fractions).The TI-84 Plus CE had a much prettier display, however the monochrome display of the Casio was much easier to read. The TI did have one advantage over the Casio, it will display fractions inside a matrix.I also prefer the mat finish on the Casio, as the super glossy finish on the TI84 Plus CE looks and feels cheap, and it attracts fingerprints.

I bought this calculator when I was finishing highschool with college in mind. despite not being allowed to use my calculator for many of my courses I have still had the opportunity to test out several interesting features. My major requires I take 3 courses of calculus (differential, integral and vectorial), one of algebra, one of statistics and a couple of econometrics. Many of the topics covered in these courses can be approached through the used of this calculator, for example: integrating equations with limits, plotting graphs, solving several systems of equations, etc.Although I have not been able to explore every function (every menu), I believe that this a great and complete graphic calculator. The interface is much more user-friendly than a TI and does everything a non-engineer might need (and maybe even everything for an engineer?).Last but not least, the service provided was great: no delays in shipping.

This looks as described. Am yet to use it but it looks decent and the price was great. Was hard time finding this, and luckily found it. Shipping was fast.