NLVM's Free Online Graphing Calculator

It's easy to find interactive graPh Meters, window, and functions.

NLVM's Free Online Graphing Calculator

NLVM's Free Online Graphing Calculator

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NLVM's Free Online Graphing Calculator

NLVM's Free Online Graphing Calculator

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 threefunctions. 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 color functions and restrict domains.

The applet doesn't contain all the functionality of a high end handheld graphing calculator, 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.

NLVM's Free Online Graphing Calculator

Top 6 Calculator Apps For Android

The Samsung Galaxy S, Droid X, MyTouch 3G Slide, Evo 4, the list goes on and on. Many of the hottest smartphones on the market today run on Google's Android OS. With each new device released for Android, the buzz about the system grows.

A quick search of "calculator" on the Android Market returned about a thousand results, far than most people would like to sort through. You'll find dozens of tip calculators, BMI calculators, mortgage calculators, love calculators, and more that are probably not what you are looking for. Luckily for you, we've done the hard work of searching through all of those apps for you and found these 6 worthy of your consideration.

#1 - HandyCalc Calculator by mmin

HandyCalc Calculator is our choice for the top calculator available on Android today. This app give you a lot of the basic functionality of a TI-84, including all scientific calculator capabilities, graphing, and the ability to solve systems of equations. Answers can be returned in fraction and radical form or converted to decimals. There are also simple copy and paste capabilities, something that should be available in more apps. The app even comes with a demo doc and a link to a video tutorial. There's a lot to like here, and even if it's not perfect, it comes as close as anything we've seen.

Pros: Free, scientific and graphing capabilities, solves systems of equations, returns both exact answers for fractions/radicals as well as decimal approximations.

Cons: Missing features of a typical grapher such as max/min, intercepts, etc.; swiping between keypads presses buttons and feels awkward; two different "equals" buttons (which perform different functions) can be a bit confusing.

Cost: FREE

#2 - Scientific Calculator by Kreactive Technologies

Scientific Calculator had the nicest UI of any calculator app we reviewed. Buttons are attractive, with a nice top-lit effect, and a good size, making them easy to press. A flick scroll or double arrow button allows you to easily access scientific functions. The calculator does feature some basic graphing capabilities. This calculator comes very close to 2-line functionality. You can enter an enTire calculation before pressing enter. Then you can return to previous calculations by long pressing the input area. There are more powerful apps on this list, but UI is important in an Android app, and Scientific Calculator has a great one.

Pros: Free, attractive UI, some functionality of a 2-line calculator, some graphing functionality

Cons: Graphing functions limited; comMents in the market indicate some users confused by lack of +/- button, although we found this easy to work around.

Cost: FREE

#3 - Calculus Tools by Andy Mc

A fantastic calculator app for calculus students is Calculus Tools. As its name implies, this app is focused almost exclusively on calculus, so it's not for everyone. The app can find integrals as well derivatives up to the fourth degree, both algebraically as well as with with defined limits. It also has the ability to help you solve problems involving arc length, surface area, and Taylor series. Your results can also be graphed. The app also contains a pretty extensive list of formulas that calculus students have to memorize. The only real drawbacks with this app are that its scientific calculator mode is still in beta and fAirly limited, and that all inputting must be done with your default keyboard.

Pros: Free, solve calculus functions symbolically or numerically, ability to graph functions, great "cheat sheet" of calculus formulas

Cons: Scientific calculator features still in beta, must use default keyboard instead of a custom math UI

Cost: FREE or .50 donate version

UPDATE: A math keyboard was added in an upgrade to Calculus Tools

#4 - Arity Calculator by Mihai Preda

Arity Calculator has a far different UI and capabilities from the other apps on this list. If you are looking for a good 3D grapher, this is it. You have the option to graph in either 2D or 3D, and simply pressing enter will take you to a clear prompt but will save your equation where it can easily be tapped if you need it later. We'd find it hard to recomMend this calculator to a novice, but it's sharp 3D features will definitely appeal to many users. Arity is also an open source app.

Pros: Free, open source, Fast, 3D capabilities, screenshots of graphs

Cons: Almost all commands (such as sin, cos, tan) have to be typed out; although you can navigate graphs and zoom in and out, there is no way to trace, find intercepts, etc.

Cost: FREE

#5 - RealCalc Scientific Calc by Brain Overspill

If you're looking for something comparable to a TI-30 (one line), the RealCalc Scientific Calc fits the bill. It's free, Fast, and offers all the functionality of a standard scientific calculator. It also features an excellent help menu for new users. The UI isn't exactly the sexiest, but we are sure some will appreciate how much it authentically looks like a retro calculator. Although we'd have preferred to see an authentic two line display, the developer has provided a previous answer feature, which can be set to retrieve numerous previous results.

Pros: Free, Fast, simple to use, offers functionality of a standard scientific calculator, Reverse Polish Notation option will appeal to some

Cons: One-line calculator interface, no graphing options, retro UI straight out of 1985 will not be for everyone

Cost: FREE

#6 - Calc+ by EricJohnson

Like many Android apps, Calc+ is available both in free and paid versions. The free version gets you the features you expect in a scientific calculator. The paid version offers the additional functionality of haptic feedback (vibrate) and unit conversions. In a clever UI decision the developer allows users to switch between a simple calculator and scientific mode by rotating rotating from portrait to landscape mode. The design is minimalistic, yet attractive. The biggest drawback to Calc+ is no ability to change from its default mode of radians into degrees.

Pros: Free version available, simple and attractive UI

Cons: One-line interface, trig calculations only in radians

Cost: FREE or $.99

ti nspire

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Looking for a Cheap TI-84 Calculator?

Looking for a Cheap TI-84 Calculator?

If you are looking for a good calculator TI-84, then you are not the only one. These Computers are much more expensive than other calculators on the market. However, this does not mean that you must pay the full suggested retail price for them. The suggested retail price is about $ 200! This is definitely a lot for a high school or college students.

Why not another Computer?

When many people see the price for the TI-84, askthe question: "why not just get another computer?" As more than a calculator can help you save money, does not guarantee you will get all the features of the TI-84 offered. If you're not familiar with these features, here are a few of them:

Can calculate, engineering, trigonometric, and financial problems to deal Includes 11 pre-installed applications Share information with PCs and other computers with USB Easy-to-use/read offers split-screen graphicsTechnology

Another thing you should know about this machine is that it is an improved version of the TI-83 - was the most popular (by sales) of the computer has ever made. Therefore, it is difficult to use a cheap TI-84. This particular model has more applications, more memory, more memory, better high-contrast display for easy reading and is much Faster than its predecessor.

How to save on this computer

Precisely becausedifficult to find a cheap TI-84 calculator doesn't mean it's impossible. As Mentioned above, the suggested retail price for this calculator is right around 0-5. This is quite a chunk of change, especially for the high-school and college students that need them the most. Obviously, this is why so many people are looking for a better price.

The best way to find the TI-84 calculator for less is by first looking at your local electronics stores to get an idea of how much it goes for locally. Then you need to begin looking online for it. Most online retailers will offer a discount right off the top of the calculator. However, don't just settle for that discount, you should search further. Look for an online retailer that has the product for less but also offers a discount on shipping. If you search long enough, you will find that some retailers will offer free shipping too!

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The Top 6 Calculator Apps For the iPhone

The Top 6 Calculator Apps For the iPhone

Our recent article on the Top 6 calculator applications for Android has been a great success, and since then we always research on IOS. You asked and we deliver. We have to be Apple's App Store applications for our six favorite calculator for iPhone and iPod touch tried. Since there were large differences in the cost of applications, we use the basic rule is that for applications that seek to cost less than $ 5. In fact, this list has proven to be our favorite iPhone apps-6 Computerless than $ 3.

N. 1 + graphing calculator from xNeat.com

+ Graphing calculator is our choice for the better the calculator application for iPhone. And 'greatest strength is that there are so many different things is good. A button you can switch easily between different Computers ways. These modes are graphic, science, writing, a polynomial calculator linear equations and the Computer. There is still room for improveMent. In particular, we had the scientific calculatorfractions, 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