Les presentamos la nueva TI nSpire 2,0. Rapidamente mostramos su nueva interfaz y su disponabilidad para baterias recargables. Para adquirila contacta a www.districalc.com Distribuidores directos de Texas Instruments para toda America Latina
Sunday, December 25, 2011
Monday, December 19, 2011
NLVM's Free Online Graphing Calculator
It's easy to find interactive graphing calculators websites, but finding a free, easy to use graphing calculator applet that's not buggy is more of a challenge. One of the best is hosted at Utah State University's NLVM site, the National Library of Virtual Manipulatives. If you're not familiar with it, NLVM is an extensive collection of interactive applets for students and teachers. You'll find not shortage of interesting puzzles and games there, but this time we wanted to highlight their "grapher" applet.
What sets apart the NLVM grapher is its simple to use, yet powerful interface. An easy to use menu at the top of the screen allows for fractions, exponents, square roots, and absolute values, and they can all be inputted just as they appear in a textbook. There's very little clutter on the screen to intimidate users.
There are surprisingly powerful options for a Java based calculator. Of course, there is a simple trace feature, which utilizes a slider bar. There are three additional tabs for users to choose from, parameters, window, and functions.
Parameters allows the user to insert up to three parameters into the equation that can be manipulated with a slider bar. If you are interested in examining translations, this is a very powerful feature since the graph adjusts in real time.
Not surprisingly, the window tab give the user the option to adjust the graph view. Fortunately, it is also possible to zoom by simply using the mouse to select a region to view.
The functions tab gives the user the ability to input up to three functions. One of the really nice features here is that composite functions are supported (although inverse functions are not). Other advanced features offer the ability to choose each functions color and restrict domains.
The applet doesn't contain all the functionality of a high end graphing calculator handheld, but that's not really the point. Whether you're a student using it to try out graphing for the first time or a teacher incorporating it into your lesson, it's a simple and reliable solution. NLVM's grapher is one of the best online graphing calculators available today.
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Thursday, December 15, 2011
(01/02) Curso de uso (manejo) para VOYAGE 200 TI-89 TITANIUM
Curso de uso (manejo) de las calculadoras TEXAS INSTRUMENTS VOYAGE 200 y TI-89 TITANIUM, para estudiantes de Colombia y Latinoamérica, este servicio es gratuito para los usuarios que adquieren la calculadora con ABAK CALCULADORAS, este curso se dicta por medio de videollamada (Messenger) en el cual se proyecta la pantalla de nuestra calculadora en el computador del usuario, siempre en tiempo real. El objetivo es lograr que los estudiantes se destaquen en las asignaturas que cursa al convertir la calculadora en una gran herramienta de estudio. ABAK CALCULADORAS abakcalculadoras@hotmail.com abacocalc.galeon.com CEL 3005707077
Sunday, December 11, 2011
Casio fx-9860G Slim Graphing Calculator
!±8± Casio fx-9860G Slim Graphing Calculator
Brand : Casio | Rate : 
| Price : $94.30
Post Date : Dec 11, 2011 04:39:08 | Usually ships in 1-2 business days
| Price : $94.30Post Date : Dec 11, 2011 04:39:08 | Usually ships in 1-2 business days
Casio Slim Graphing Calculator FX-9860GSLIM Calculators
- Available RAM/Flash ROM 64KB/1.5MB
- Number and Constant Memory
- Interface Icon Menu
- Lines x characters 8 x 21
- Screen Size (Pixels) 64 x 128
Thursday, December 8, 2011
How To Install TI-89 Titanium Device Drivers HD 720P (Windows XP) *REUPLOAD*
Installing device drivers for the TI-89 even if you don't have the CD. Watch in HD so the steps are easier to see and follow.
Sunday, December 4, 2011
SAT Math Sample Problem: Diameter of a Sphere - SAT Operating System Application Tutorial
ORIGINAL TEXT: 8) A cube with surface area of 54 sq. inches is inscribed in a sphere. If each vertex of the cube touches the sphere, what is the length, in inches, of the diameter of the sphere? We can solve this problem with the SAT Operating System directly! This is how we work out the logic of the problem before we use the SAT Operating System: 1. We have the surface area of the cube (54 sq. in). 2. We know that each vertex of the cube touches the sphere. That means that we want to find the diagonal of the cube. To do this, we will need to use the Pythagorean Theorem twice. Once to find the diagonal of the base of a triangle and then a second time to find the hypotenuse of a triangle which will be the diagonal of the cube. That diagonal of the cube is the same value as the diameter of the circumscribed sphere. Answer: 1. For step one, we found the side to be 3 (can't be negative 3 since dimensions are not negative) 2. For the diagonal of the bottom face of the cube, the value is: 4.2426 3. For the diagonal of the whole cube: Use 3 for one side, 4.2426 for the base, and we found the diagonal of the cube (the hypotenuse) to be: 5.19612 ANSWER: Thus, the diameter of the sphere is: 5.19612 Now, your answer choices may not be in decimal format, so compute each answer choice if it's in fractional format to get the decimal form of the value. ------------- With theSAT Operating System for TI-89 and TI-89 Titanium graphing calculators and just 5 minutes of your time, you can ...
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Thursday, December 1, 2011
Leading Manufacturers of Graphing Calculators
A computing devices that is able to plot graphs and solve graphing problems is called a graphing calculator. It can solve simultaneous equations and can perform various tasks with variables. The calculator has a large display that is able to take in numerous lines of text and calculations at the same time. There are also color displays, 3D graphing, and readily user-programmable graphing calculators that are useful in education, engineering, and scientific applications.
World's Leading Producers
Casio, Hewlett Packard (HP), Texas Instruments (TI), and Sharp are the world's leading producers of graphing calculators. Each company has their own top of the line models.
For instance, Casio has its fx-7000G graphing calculator manufactured in 1985. it was also one of the first graphing calculators that came out in the market. Hewlett Packard has HP-28C after few years and eventually produced the HP-28S in 1988.
The other models HP had produced are the HP-48SX in 1990, HP-48S in 1991 and the recent model, the HP 50g in 2006. The HP 50g has a feature of Computer Algebra System (CAS), powerful in solving analytical problems and in manipulating symbolic expressions. The production of HP-28 and HP-48 range is specifically intended to groups of science and engineering professionals.
The HP-38 HP-39 and HP-40 target the high school and college students as the main market. And the HP-49 model is sold to all levels of both educational and professional customers. It is known for its standard expression entry interface. All the HP series are popular because they are featured with Reverse Polish Notation interface.
In 1990, Texas Instruments started to manufacture graphing calculators. Their first model was the TI-81 series. The TI-82 and TI-83 series consist of TI- 83, TI-83 Plus, and TI-83 Plus Silver Edition. These have larger internal memory. Their TI-80 and TI-73 series are best suitable for students, ages 10 to 14 years old. The design of TI-85, TI-86, TI-89 series, and TI-92 series which comprises of the TI-92, TI-92 Plus, and Voyage 200 are applicable for calculus. And the TI-89 and TI-92 series are designed with computer algebra system; however, the TI-92 series offers a QWERTY keypad.
Texas Instrument devices are purposely produced mainly for the educational sector and the general public. Sharp has been also involved in the production of graphing calculators. However, they do not have collections of programs.
Here are the top selling models regardless of brand names:
HP 48G II Graphing Calculator
It is a perfect graphing calculator for either laboratory activities or classroom work in math, science, statistics, engineering and surveying. The calculator features 128KB Memory, and 80.7KB of the total memory is available to the user. It has 131 x 64 pixel display and has large built-in constant library and structured programming for making applications.
The HP graphing calculator features more than 2,300 functions. It has a Computer Algebra System (CAS). This feature is very helpful in numeric solving and symbolic manipulation. Thus working in complex arithmetic or calculus functions will be easier and not complicated.
It also provides comfortable viewing because it has a large screen along with 2D and 3D graphing modes. Such screen has also serial port and IrDA connectivity that consists of cable and software. The serial port can be connected to the PC for easy transfer of data. The graphing calculator is featured with algebraic, RPN and textbook entry modes As well.
It is operated on three batteries. It also comes with an auto shut off feature after five idle minutes. It measures only 7.2 x 3.4 x .09 inches and weighs 7.7 ounces.
Texas Instruments TI-89 Titanium Graphing Calculator
Texas Instruments TI-89 Titanium Graphing Calculator is ideal for advanced engineering applications and advanced college mathematics. It has a big working memory of 188 KB RAM, and upgradeable to 2.7 MB Flash ROM and 3D graphing. It includes a mini USB port and such USB port is useful for a more convenient transferring of data. It has a display of 100 x 160 pixels.
This device is handy in storing important financial data. It has pre-programmed applications like a cell sheet, polynomial root finder, calendar, note folio, symbolic math guide, French and German localization, and simultaneous equation solver. The calculator has a graph mode that can store 99 equations. And some of the analysis of TI calculator includes maximums, minimums, roots, intersections, derivatives, arc lengths, inflection points, and integrals.
The unit comes in a hard slide case and power supplied by 4 batteries that are silver oxide. It comes along as well with a user instruction guide. It has one year warranty for the parts and for the labor.
Casio CFX-9850GB Plus Graphing Calculator
This graphing calculator is best for math and science students. It has 900 advanced features to help solve problems quickly and accurately. It has a total memory of 32 KB and can store up to 38 programs. It has also a large, easy to read display that can show eight lines and 21 characters, 15-digit, 10-plus-2. And such display is in three colors which make then the graph in animated form. Thus the variables in can be changed in a formula, and then will able to view the movement of the graph.
The calculator has ability to work on statistical calculations that include histograms, eight regression types, scatter plots, and box and whisker plots. It has a built-in communications port that can be connect to a personal computer. Graphic functions include making vertical lines, parametric, rectangular and polar coordinates.
The Casio graphing calculator is enclosed in a hard slide case and uses four alkaline batteries and a lithium battery. It comes also with a user guidebook. It weighs 2 pounds.
Monday, November 28, 2011
The Top 6 Calculator Apps For the iPhone
Our recent article on the top 6 calculator apps for Android was a big hit, and since then we've been getting search inquiries about iOS. You asked for it, and we are delivering. We've searched out Apple's app store for our favorite 6 calculator apps for the iPhone and iPod touch. Since there was a wide disparity in cost of apps, we set the ground rule that we were searching for apps that cost less than . In fact, this list turned out to be our favorite 6 iPhone calculator apps for under .
#1 Graphing Calculator+ by xNeat.com
Graphing Calculator+ is our pick for the best all around iPhone calculator app. It greatest strength is that it does so many different things well. A switch button takes you easily between the calculators different modes. Those modes are graphing, scientific, handwriting, a polynomial calculator, and linear equations calculator. There's still room for improvement. In particular, we wish the scientific calculator had fractions, and that the grapher had trace. But the app is simple and powerful, and the fact that it automatically finds max, min, intercepts, and intersection points pretty much makes up for the lack of trace.
Pros: Handwriting support, graphing scientific, quadratic and cubic solver, systems of linear equations
Cons: Handwriting mode not always accurate, decimals only
Cost: .99
#2 Graphicus by Serafim Chekalkin
We are huge fans of Graphicus. If only every graphing calculator were this easy to use. No need to read the user manual here, just jump right in. Graphicus brings you almost all the information you could want about Cartesian, polar, and parametrics graphs in an incredibly elegant interface. Trace, extrema, inflection points, tangent lines are all readily available with a few taps of your finger. On the downside, there is no simple scientific calculator. It's also a minor bummer that there's no 3D in an app that's 100% focused on graphing, but there's only one app on this list that has 3D.
Pros: Offers everything graphical, intercepts, trace, inflection points, max/min, complete
Cons: Just a grapher
Cost: .99
#3 Symbolic Calculator by Janos Barkai
If you need a CAS for your iPhone, this is the app for you. For those who have used a TI-89, you'll feel right at home with with Symbolic Calculator. The focus of this app is it's computer algebra system, and the interface is pretty easy to use for those familiar with Texas Instrument's CAS calculators. If you're new to CAS's, just tap the question mark next to a given command, and an example will pop up demonstrating how to use the syntax appropriately. You can also use this app to graph, although it feels a little counter-intuitive until you get the hang of it, and the graphing features are simplistic compared to some of the other apps on this list.
Pros: For a CAS, simple to use, offers example input for each
Cons: Graphing could be nicer, mathprint only after inputting
Cost: $.99
#4 Graph It by Tezmo
Another excellent grapher is Graph It. This is also full featured grapher, which offers the ability to trace, find intercepts, and roots, as well as graph derivatives and integrals. It also offers a full scientific calculator with two-line display. The user interface is ok, but might take some getting used to for some users, particularly for the scientific calculator mode.
Pros: Full featured grapher, also a full scientific calculator
Cons: UI takes a little getting used to
Cost: $.99
#5 Quick graph by Columbiamug
For those in need of a 3D graphing app, Quick Graph is the way to go. There are other positives here too such as a strong user interface, simple to use polar coordinates,and a good 2D graphing interface. Screen caps are another built in feature. The real selling point, though, is the 3D, which is well rendered and even accepts cylindrical and spherical coordinates. It is possible to use this app as a scientific calculator, but the interface feels a little strange.
Pros: Polar and 3D, screen caps of graphs
Cons: No trace features, don't feel designed for non-graphing calculation
Cost: Free
#6 Powerone LE by Infinity Softworks
Not everyone is looking for a fancy grapher. For those looking for a more standard scientific calculator, Powerone LE fits the bill. It's got a very intuitive interface that you'll pick up right away. Powereone also features unit conversion and a currency converter that stays current to international currency exchange rates. Additionally, its got a simple statistics calculator that finds the mean of a series of numbers. It could be better if the scientific features used a two-line interface.
Pros: Easy to use, nice UI, currency/unit converter, stays current, simple statistical analysis
Cons: One line calculation, no graphing
Cost: Free with option to upgrade to more powerful version for .99
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Friday, November 25, 2011
Texas Instruments Voyage 200 Calculator
!±8±Texas Instruments Voyage 200 Calculator
Brand : Texas InstrumentsRate :
Price : $182.99
Post Date : Nov 25, 2011 08:39:46
Usually ships in 24 hours
Texas Instruments 200 Calculator TIVOYAGE200 Calculators
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Tuesday, November 22, 2011
The Best Calculator - Texas Instruments TI-89 Titanium Graphing Calculator
A graphing calculator is an electronic device used in performing mathematical calculations such as solving equations and plotting graphs. It is programmable, allowing the user to create customized programs for education and scientific/engineering applications.
A graphing calculator can provide several calculations and text lines at the same time. Some have color displays, while others include 3D graphing. The TI-89 Titanium is one of the model graphing calculators popularly used today.
The TI-89 Titanium has a powerful computer algebra system developed by Texas Instruments. This allows the manipulation of symbolic algebraic expressions, where in, it solves the equation in terms of variables.
Hence, the TI-89 Titanium is a replacement of the TI 89 which was released during the summer of 2004. It has four times the ability of the TI 89, especially with regards to its flash memory. More Apps, programs and data are being stored. Thus, the TI-89 Titanium is necessarily a Voyage 200 without an integrated keyboard.
Features:
- TI-89 Titanium handles algebra, calculus, matrices, and statistical functions.
- RAM: 188 KB
- Flash Memory: 2.7 MB
- Pixel Display: 100 by 160 large pixels (split screen view)
- Power: 4 AAA Silver Oxide batteries
- Units: More than 100 in 28 categories
- Stored constants: 20
- 255 symbols in the character set (Greek, system, and international characters).
- Real time rotation- 3D surfaces.
- File sharing with the used of USB on-the-go technology.
- Optional assembly language programming
- Has a 3-D rotation and contour plots.
- Active Calculator Home history screen - can hold up to 99 previous entries for deep recalling purposes.
- Graph mode can stored up to 99 equations for each mode.
- Real and complex numeric results.
- Catalog includes syntax listing of functions and commands.
- With a pre-programmed applications such as CellSheet, Calendar, EE Pro, Contacts, German Localization, Finance French Localization, Planner, Notefolio, Polynomial Root Finder, Simultaneous Equation Solver, Statistics with List Editor, Spanish Localization. Symbolic Math Guide, Study cards and Tasks.
- Analysis: Function values, maximums, roots, minimums, derivatives, integrals intersections, arc lengths, and inflection points.
- Official AP Calculus exam review questions.
- Impact-resistant slide case.
- Compatible with TI Keyboard.
- 1 year warranty
Accessories:
o Silver oxide battery, TI-Presenter , ViewScreen Calculator, Presentation Link Adapter, Applications CD-ROM, USB silver cable for Windows/Mac, TI Connectivity Kit, GraphiTI, TI Keyboard, user's guide, TI-link cable, colored hard slide case, Kickstand Slide Case and warranty info.
Other available applications for TI-89 Titanium are:
o Calculus Made Easy
o Cabri Geometry
o Calculus Tools App
o DataMate App
o EE200
o Polynomial Root Finder App
o TI-Reader App
o The Geometer's Sketchpad
o LogIn App
o US Presidents App
o ME*Pro App
o LearningCheck App
School Use
The TI-89 Tritium, along with the other series, is one of the most function-rich and powerful graphing calculators which can be legally used in many testing situations. It is also allowed on:
o AP Calculus
o AP Physics
o AP Statistics
o PSAT/NMSQT
o AP Chemistry
o Math IC and IIC
o SAT I and II
The TI-89 Titanium's advanced functionality helps students, particularly in engineering and mathematics in doing problem solving with ease. Many high school teachers encourage their students to use graphing calculators within the Canadian and American education system. Thus, students tend to buy the TI-89 Titanium because of its game compatibility.
The TI-89 Titanium has really gone a long way. It is more reliable due to its advanced capabilities and its simplified methods. Texas Instruments tend to upgrade the TI technology more over the years, especially focusing on its fully featured functionality for the modern day computing.
Sunday, November 20, 2011
Step by Step Calculus botheration analytic affairs for TI 89 and Voyage 200
Try this amazing calculus problem solving program for FREE here: www.ti89.com This program solves almost all calculus problems in seconds on your calculator. See how to solve Calculus problems step by step. Ie Step by Step Derivatives, Step by Step Integrals, Step by Step Differential Equations. Just enter the function and see the details of how the final answer is derived. Really amazing.
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