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.
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