# Tag: Review

## Hp 15C Limited Edition Scientific Calculator Review

# Hp 15C Limited Edition Review

The HP 15C Limited Edition was released on the 30^{th} Anniversary of Hp-12C edition. The earlier version (HP 15C Scientific Calculator) was introduced in the market in 1982 but it was discontinued in 1989 and the price of that scientific calculator was about $100. The latest version of Hp-15C i.e. HP 15C Limited Edition was released in 2011 and its price was about $180. The Hp-15C Limited Edition is the latest version of HP 15C Scientific Calculator with the modern ARM technology which is powered by 12C hardware. This new version is very practicle for the power users, providing portability and it provides RPN mode which makes the computation easier. This version is more advantageous to engineers as it provides the complex computation operations like complex numbers, matrix operations, integration, differentiation and roots problems. The new version of the HP-15cis better than its original version in many respects i.e. the design of HP 15C Limited Edition is more simple and elegant, it provides more scientific functions, it is portable as it can be placed in the pocket of a shirt and its keyboard keys are less solid and are user friendly.

The Limited Editionis much faster than the original Hp-15C as it provides the answers of the complex problems like integration of polynomial functions and factorial of non-integers in the glimpse of an eye. HP has provided about one hundred times faster operations than the original Hp-15C edition. The palpable response of the keys of the Limited Edition is another big achievement of Hewlett Packard. The re-released version has a detailed manual about using the calculator for the desired calculations, a sleek and attractive collectible box and a CD for the instructions. The display of the Limited Edition is also better than the original one as it provides a wider display range and better contrast. The processor is much faster and the operating system starts up and shuts down instantly. To sum up the whole story, the Limited Edition is better than the original version in all respects. If you want a fast computations, a large display, palpable response of the keys, portability of the calculator, a scientific calculator with all the functions needed for the engineers and scientists then don’t wait prices are rising fast on the Limited edition as the short supply is gobbled up by die hard HP collectors itching for a chance to own the new HP 15C Limited Edition.

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## HP 35s Scientific Calculator Review

# HP 35s Scientific Calculator Review

This calculator is classic by many means. It has the look and feel of a serious machine, and the display of a traditional scientific calculator. If you are a loyal HP user, this calculator will feel familiar. The HP 35s Scientific Calculator is a Reverse Polish Notation (RPN) calculator, which means that it doesn’t require the use of brackets to define priorities for evaluation of operators. Some people are long time RPN users and absolutely swear by the method. Some newcomers claim that RPN is very easy to learn and worth the time. Others, yet, prefer to bypass the whole system and go with a more user-friendly and intuitive interface. The RPN mode comes in handy especially in a scientific calculator with fractions like this one in which fractions can be inputted in a variety of ways, as per the user’s choice. The HP 35s calculator is programmable, a huge plus for those who rely on pre-programming to facilitate everyday calculations, or speed up certain test problems. However, only a few programs can be stored since it limits the number of labels and variables to 26.

This scientific calculator with fractions makes it easy to view and perform both regular as well as mixed fractions. It features a fraction button and gives the user the choice to input the fraction using RPN or algebraic mode. Both modes will return the same result, the main difference is in the format of the input. This is more than just a scientific calculator with fractions, it performs advanced mathematics, especially the type required in scientific, medical and engineering professions. Engineers who are already familiar with RPN may consider this calculator a good choice for the NCEES PE and FE exams. Although, it’s not a good choice for everyone because of its interface, it does deliver on the math. Some features are made to facilitate common problems like two-variable equations. Enter and solve two equations with two unknowns simultaneously using the HP Solve application. Enjoy features like numerical integration, and complex number and vector calculations.

Without solar assistance, expect to change the batteries quite often. The physical design of the calculator is attractive to the serious type, and the buttons are ergonomic and feel easy and comfortable to the touch. A hard protective cover comes included with the calculator.

Unlike most recent scientific calculator models that display four lines at a time, the HP 35s only displays two lines. It also doesn’t feature the newly coveted textbook-like display. This is not the most intuitive or user friendly calculator, but it will certainly appease the more traditional user looking for nothing more than pure programming and mathematical power.

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## Casio FX-115ES Plus Review – Casio Scientific Calculator

# Casio FX-115ES Plus Review

Casio claims that this new calculator is their most advanced scientific calculator to date. It is, in fact, especially when compared to Casio’s previous lines of scientific calculators. The Casio Scientific Calculator FX-115ES PLUS offers the newest trend in scientific calculators: the “natural textbook” look. Inputting complicated equations and reading outputs is made easier with this function because of the way the numbers are organized on the screen. For example, fractions look exactly as they would if written on a piece of paper – a numerator directly above a horizontal line and a denominator underneath. Pi is depicted symbolically and square roots are easier to visualize. This is a feature that helps tremendously during test-taking, especially if your mind is accustomed to viewing equations and examples from written texts. The Casio FX-115ES PLUS also holds previous entries and outputs in memory so that you can recall and modify current entries.

The Casio FX-115ES PLUS is a good choice for the NCEES FE and PE exams as its mathematical capabilities are sufficient for most Engineering demands, even more advanced ones. This calculator makes unit conversions easy since the most common unit conversions are pre-programmed into it. During a test, the last thing you want is to strain your brain for scientific constants; this calculator takes that pressure off by giving you access to codes for over forty scientific constants right inside its cover. Enjoy many other useful time- and energy- saving functions. Find the xth root, factorize prime numbers, calculate remainders, convert between metric units, calculate equations and inequalities, perform matrices and vectors, and use complex numbers among many other standard scientific calculator functions.

There is a major drawback to this calculator: its history is wiped when the ON button is pressed or when switching between modes. The calculator automatically shuts off after a couple of idle minutes, which is great for saving power during a long day of problem solving, but if you step away for a quick break everything input and calculated up until then will be gone when you return. This has been reported as its main issue by otherwise very satisfied users.

At 3.35 ounces, this calculator won’t add any burden to your backpack. Its keys are plastic and it comes with a hard cover for safekeeping. The price of this calculator certainly doesn’t reflect its enormous range of possibilities. For the low price, the Casio FX-115ES PLUS is a great investment for anyone looking to adopt and become familiarized with their first – or next – scientific calculator.

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## Texas Instruments TI-Nspire CX CAS Review – The Best Graphing Calculator?

# TI-Nspire CX CAS Review

The TI- Nspire CX CAS Graphing Calculator looks and feels more like a smart phone than a calculator at first glance. The first thing to notice about this calculator is the color screen and distinct button organization featuring a touchpad smack dab in the top middle of the board and a full ABC keyboard at the bottom. Lagging just behind Casio with this innovation, this Nspire brings color and customization to graphing. It operates much like a computer by allowing scrolling, clicking and saving. The backlit LED display HD display’s brightness has 10 adjustable levels, the brightest being bright enough to see under daylight. The batteries included are rechargeable and will last up to two weeks on a single charge and for many years. This is quite an important power implementation, especially for such an energy-guzzling calculator like this one.

Let’s turn to the math. The TI- Nspire CX CAS is capable of all the mathematical feats of a TI-89 , plus some really sweet eccentricities that make it fun and easy to use as well as learn on. Color and animation are everything. Color code equations and graphs, and animate points on objects and graphs. Load pictures and perform mathematical operations on top of the picture for teaching and learning purposes. Use a slider to make interactive graphs and understand their nature. Jot down notes right next to your math as reminders for later. Link multiple documents to see how changing one form affects all others. Use the Vernier DataQuest™ application to create hypotheses graphically and replay data collection experiments. Don’t just calculate, analyze data with advanced statistical methods and multiple data input methods like lists and matrices.

This snazzy calculator is recommended for anyone who needs a graphing calculator, from the high school student beginning to learn about derivatives, to the college student struggling to solve a physics problem set, to the Engineer building a bridge. This calculator doesn’t leave behind any essential functions or facilitative extras. It features textbook-like display of the text (for example, stacked fractions and math symbols) for easy viewing and inputting and includes integrated templates that facilitate input of more unfamiliar problems. Chemists will love a feature called Chem Box which allows for easy input of chemical formulas and equations.

The high tech feel and colorful nature of this incredibly user-friendly and aesthetically pleasing calculator will certainly attract younger generations as well as older ones who want to add some spice and dynamics to their graphing experience with the TI- Nspire CX CAS .

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## Texas Instruments TI-30XS Mulitview Scientific Calculator Review

# TI-30xs Multiview Calculator Review

TI-30XS Multiview Calculator stands on its own as a great scientific calculator for beginners, but it lacks a lot of calculation power found in more advanced calculators like the TI-36X Pro . This is a very user-friendly calculator above all. Its four-line display is easy on the eyes and the memory as several equations can be held on the screen at once. Even better, the home screen is scrollable and includes a cut/paste function to incorporate previous outputs into new equations. This calculator features TI’s Mathprint™ which makes your input look just like the writing you generally see in textbooks: fractions are vertical and square root signs actually house numbers entirely. Enjoy seeing the pi’s symbolic depiction, generating random numbers, and converting angles between degrees, radians and grads. The keys are made of hard plastic and organized much in the same way of graphing calculators, and the solar panel prolongs the battery power. Like most TI-s, the TI-30XS Multiview Calculator comes with non-skid rubber feet and snap-on protective case.

Now, let’s talk about actual mathematical capability. High school students: this calculator is a charming step stool to the big bad world of math. Engineers, physicists and statisticians: this calculator is the best calculator for high school students. Even its custom color options scream teenager. This calculator simplifies fractions, and does up to two-variable statistics. Don’t try solving polynomials or finding derivatives because it won’t know what you’re talking about.

The NCEES PE & FE guidelines do allow this calculator to be used. However, it may be wise to invest in something a little more advanced for such an exam. This calculator is geared more towards lower-level exams like the SAT, ACT and AP exams. As enjoyable and useful as the stacked fraction function, the ability to switch between improper and mixed number fractions, or toggling between exact numbers and approximations are, other functions will serve you better in a test as complex and mathematically involved as the NCEES PE and FE. For example, compared to its more advanced counterpart, the TI-36x Pro, this calculator lacks the ability to solve complex equations and perform matrices. Some of the features you can enjoy on this calculator include x,y table lists (made possible by the four-line display), and outputs written out in scientific notation, where superscripts are written out as they would be on a sheet of paper. For those in biology, pre-algebra, algebra 1 and 2, or general chemistry classes that don’t allow the use of graphing calculators, the TI-30XS Multiview Calculator might be your best bet.

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## Texas Instruments TI-36x Pro Review – Best Calculator For FE Exam 2014

# Texas Instruments TI-36X PRO Review

The TI-36X Pro Scientific Calculator is a calculation powerhouse and a perfect companion to the aspiring and the accomplished engineer. Its functions are advanced in nature but its interface is simple and user-friendly. The input and data manipulation styles of this calculator are comparable to that of graphing calculators; it allows for scrolling through entries, making edits to previous entries and pasting inputs or outputs into new calculations. Its four-line display makes it easy to visualize up to four calculations at a time and allows for mathprint view of equations – input equations into the calculator in the same way that you would write them out by hand on a sheet of paper. Unlike other scientific calculators, the TI-36x Pro performs vectors and matrices with simple input.

The Texas Instruments TI-36X Pro Calculator is approved and recommended as the number one choice as the best calculator for the FE exam. In terms of the available mathematical calculation capacity, this calculator introduces several facilitating functions. One of the main perks of this calculator is that it solves equations! This calculator will actually solve most numeric and polynomial equations, as well as up to 3×3 systems of linear equations within seconds. During exams like the NCEES series, this will save a lot of time because it will eliminate the need for certain tables, and step-wise calculations. The TI-36X Pro also offers a very helpful unit conversion function. For those taking the Electrical FE or PE, you’ll enjoy the “Power, Energy” conversions. Civil Engineers can take advantage of the “Speed, Length” conversions. The other conversions include “Temperature”, “Pressure” and “English-Metric”. Unfortunately, this calculator has left out automated metric units, which means you won’t be able to simply press a button to indicate that you are working in the, say, Mega range. However, it did store some constants – speed of light, proton mass, Faraday constant, and many etc.’s – in its memory along with each one’s units so you don’t have to fumble around your own memory searching for these.

This machine of mathematical wonder holds a few time-saving advantages in its design that propels it to the number one spot. First, there’s no need to switch between modes exclusively, which in some other scientific calculators is not only necessary but may result in complete devastating loss of all calculations done in previous modes; there’s no time for that during an important test. Another feature, which is introduced by this model, is the multitouch function. Switch between functions like sine, inverse sine, hyperbolic sine and inverse hyperbolic sin all with consecutive touches of the same button. This applies to several other frequently used functions as well, like *pi*, *e* and *i*. With all of the capacity built-in to this quasi-graphing calculator, it’s no wonder they had to implement a multitouch function.

Although the TI-36x Pro is a handy tool for engineers, it’s also recommended for physicists, statisticians, computer scientists, biologists and all other professionals who need to perform complicated calculations but can forgo graphing power.

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## Texas Instruments Full Keyboard Review

The Texas Instruments Full Keyboard is a great accessory for Texas Instruments graphing calculators. Many did not even know that such a keyboard even existed but once you start using the keyboard you will wonder how you got by without it. It is compatible with the TI-83, TI-84, TI-89, TI-92, and Voyager 200 graphing calculators.

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## TI-30X IIs Scientific Calculator Review

The TI-30X IIS 2-Line Scientific Calculator is a very good scientific calculator which is preferred and recommended by both students and teachers alike. The Texas Instruments TI-30X IIS is one of the best selling scientific calculator for good reason and is the one I personally

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## TI-83 Plus Graphing Calculator Review

The Texas Instruments TI-83 Plus is the most reliable and familiar graphing calculator on the market. The TI-83 plus is widely used in middle school, junior high, and high school math and science classes and is the best graphing calculator for students on a budget who are in math, physics, finance and science classes. While the Texas Instruments TI-83 Plus graphing calculator does not have the memory storage space or computing power of other newer more expensive models it is a good calculator for every day students and there is no reason to spend the extra money as the Texas Instruments TI-83 Plus is a good cheap graphing calculator that performs very good in the classroom and while working on homework. In fact many textbooks use the TI-83 as the textbook example making homework easy.

**FEATURES**

- Calculator operating system and software is upgradeable with built in FLASH ROM
- Easy to use graphing calculator
- Data plotting, analysis and the capability to compare and graph functions
- Calculator with square root function, graphing, plotting, and mathematical calculator abilities

## BENEFITS

- This scientific calculator comes with a one year factory warranty.
- Approved for use on the SAT, PSAT, ACT, AP and IB test

## SPECIFICATIONS

- One year warranty
- Very good instruction manual explains all functions in detail
- Engineering and scientific notation
- Protective case

## PROS

- Great learning tool, many textbooks use the Texas Instruments TI-83 Plus as examples in the text
- The Texas Instruments TI-83 Plus is an easy to use calculator
- Cheap graphing calculator, low cost but good value
- Best entry level calculator

## CONS

- Basic model with fewer features and less memory and computing power as more advanced models
- No color display

## BEST FOR

The Texas Instruments TI-83 Plus is the best scientific calculator for algebra, geometry, statistics, finance, general math, or science.

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