HP 35S Programmable Scientific Calculator (ALG/RPN) With 30KB - 14-Digit LCD(sold individuall)
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
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In the olden days, people used to calculate using objects and items such as sticks, leaves or even beans. However, this will cause misunderstanding and at times, unfairness would happen because it depends on the honesty of the person who is doing the counting. So, to solve this problem, the inventor had come out with abathia, the first handmade calculator made from wooden frame. There are wires in between which are filled with beads. This wooden calculator has been used by most of the merchants and offices for quite some time for normal and easy calculations. However, the functions are quite limited and only suitable for basic calculations.
As the economy and technology becoming more and more advance, inventors had come out with basic calculator for people to perform exact calculation. Some of the functions such as 'plus', 'minus', 'multiply' and 'divide' were then developed. After that, programmable calculators are invented to perform complicated calculations easily. The latest calculator is called scientific calculator. It has been widely used in universities and companies to ease the calculation processes. Looking at the convenience of scientific calculator, Rolf Howarth came out with the idea to develop online scientific calculator in 1996. Square Box Systems Ltd. became the host companies to support this online site since the launching of the software.
The written online scientific calculator has all the functions such as logarithms, logs to base 2, square root, factorials, trigonometry functions, hexagonal, binary functions and others. Now, let us look into the benefits of this calculator; be it for business use or personal use.
1) Convenience
It is now convenient for people to perform complicated calculations using online scientific calculator. Today, Wi-Fi is available everywhere and as long as you are connected to the Internet, the calculator can be used anytime you prefer.
2) Easy
This online calculator is easy to be used. There is a manual or help function to guide you if you are not sure which buttons to click for your calculations.
3) User friendly Interface
It is not complicated and it has a user friendly interface. All the buttons are well arranged exactly like the normal scientific calculator.
4) All Types of Calculations
This calculator is able to perform any types of calculations. For example, you can use it to calculate your house loans, property taxes, income tax benefits, insurance and many more. It is suitable for business people as well as students.
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Item Name: HP 48GX (128KB) graphing calculator - used. Cosmetic Condition: Good Perfect Working ConditionHP 48GX Expandable RPN Graphing Calculator with two expansion card slots This item has been discontinued by the manufacturer. We have a limited number of used calculators available at the price listed on this page; once they are gone we'll likely stop carrying this model. These used units have been verified by us to be in good condition and in working order. Includes cable and batteries. Does not include: Manuals or manufacturer warranty. Returns will not be accepted for this item, but we will repair or replace defective units for an extended period of 60 days.
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Texas Instrument has designed a calculator that dominates the educational community. Highly rated on its ease of use, the Ti-83 Plus allows students to graph, compare functions, and perform data plotting and analysis. All high school taking pre - algebra, algebra 1 and 2, trigonometry, statistics, biology, physics, business and finance classes all require a graphing calculator. Important standardized testing also requires the Ti-83 Plus; including SAT, PSAT, AP, ACT and Praxis. Additionally, this calculator has abilities of sequential graphing, function, polar and parametric. It is plain and simple, if you are a high school student the Ti-83 Plus is right for you.
The Ti-83 Plus is the Texas Instrument 1999 upgrade from the Ti-83. The greatest improvement to this calculator is Flash ROM. There are two kinds of memory in a graphing calculator; they are ROM (Read Only Memory) and RAM (Random Access Memory). ROM is memory that cannot be changed, RAM which allows you to change the memory, if the graphing calculator loses power, RAM might be lost. With Flash ROM, you can install applications and user files to your calculator. Organizers, day planners, editing spreadsheets and multi-user functions are some of the applications that can be down loaded to the Ti83 Plus. Flash ROM also allows for O.S. (Operating Systems) upgrades allowing your calculator to remain up-to-date and functioning at the highest quality.
The Ti-83 Plus comes with many preloaded applications to aid your calculations. Each application is designed to make it easier for students to learn and succeed. The following are complimentary pre-loaded Ti-83 Plus applications: Probability Simulation Application (used for testing ratios), Study Guide Application (used to make electronic flash cards), Science Tool Application (used to unit conversion) and Vernier Easy/Data (used to make data collection faster and simpler).
While the Ti-83 Plus is primarily an educational tool, now it can be used for entertainment as well! The Ti-83 Plus allows users to download games, both educational and recreational. There is no better way to get a student excited about their calculator than to add an element of fun. The Ti-83 Plus has a great selection of categories to choose from: arcade games, board games, casino games, educational games, and sports games - to name a few. Frogger, Black Jack, Chess, Game Ball, Arithmetica, and Baseball are just a sample of the popular games you can add to your Ti-83 PLUS.
Though it is easy to see why this is the most popular graphing calculator, there is still more! The Ti-83 Plus has all the features to be used as a scientific calculator, allowing middle-school/junior high school students can use this too. Even better, the Ti-83 Plus is the popular graphing calculator in college courses including: mathematics, statistics, biology, physics, business and finance classes. That is 10 years of school, covered with one Ti-83 Plus! With the Ti-83 Plus, you can accomplish all of your calculating needs and you are sure to get your money worth.
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