Sunday, December 25, 2011

HP 32Sii Scientific Calculator

!±8±HP 32Sii Scientific Calculator

Brand : HP
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Post Date : Dec 25, 2011 12:43:29
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Sunday, December 18, 2011

College Algebra: Convert Decimal & Scientific Notn

www.mindbites.com Taught by Professor Edward Burger, this lesson was selected from a broader, comprehensive course, College Algebra. This course and others are available from Thinkwell, Inc. The full course can be found atwww.thinkwell.com The full course covers equations and inequalities, relations and functions, polynomial and rational functions, exponential and logarithmic functions, systems of equations, conic sections and a variety of other AP algebra, advanced algebra and Algebra II topics. Edward Burger, Professor of Mathematics at Williams College, earned his Ph.D. at the University of Texas at Austin, having graduated summa cum laude with distinction in mathematics from Connecticut College. He has also taught at UT-Austin and the University of Colorado at Boulder, and he served as a fellow at the University of Waterloo in Canada and at Macquarie University in Australia. Prof. Burger has won many awards, including the 2001 Haimo Award for Distinguished Teaching of Mathematics, the 2004 Chauvenet Prize, and the 2006 Lester R. Ford Award, all from the Mathematical Association of America. In 2006, Reader's Digest named him in the "100 Best of America". Prof. Burger is the author of over 50 articles, videos, and books, including the trade book, Coincidences, Chaos, and All That Math Jazz: Making Light of Weighty Ideas and of the textbook The Heart of Mathematics: An Invitation to Effective Thinking. He also speaks frequently to professional and public audiences ...

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Sunday, December 11, 2011

Prizm FX-CG10 Color Graphing Calculator (Black)

!±8± Prizm FX-CG10 Color Graphing Calculator (Black)

Brand : Casio | Rate : | Price : $104.94
Post Date : Dec 11, 2011 18:39:31 | Usually ships in 24 hours


Graphing calculator with hi-res color LCD display, resolution: 216 x 384 dpi Picture Plot image background. USB port. Icon driven menu providing easy access to advanced functions. Permitted on AP,SAT,PSAT/NMSQT and ACT college exams. Slide cover included.

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Friday, November 18, 2011

Saturday, November 5, 2011

Texas Instruments Ti-nspire Graphing Calculator with Touchpad

!±8±Texas Instruments Ti-nspire Graphing Calculator with Touchpad

Brand : Texas Instruments
Rate :
Price : $0.00
Post Date : Nov 05, 2011 21:18:07
Usually ships in 1-2 business days



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Thursday, October 20, 2011

Texas Instruments TI-83-Plus Silver Edition

!±8± Texas Instruments TI-83-Plus Silver Edition

Brand : Texas Instruments | Rate : | Price : $169.98
Post Date : Oct 20, 2011 10:26:57 | Usually ships in 1-2 business days

The TI-83 Plus Silver Edition with some healthy skepticism, the features of the TI-83 Plus Silver Edition are substantial, offering useful, powerful extras at a remarkable value. While the mathematic and graphing tools boasts significantly improved speed and memory. Its processor is 2.5 times faster, and it has over 1.5 MB of memory--10 times that of the TI-83 Plus. These upgrades make the Silver Edition a significantly improved graphing tool, enabling you to work faster and save more of your equations and programs. The TI-83 Plus has a large, easy-to-read 64 x 96 pixel LCD that fits 16 characters and 8 lines. Altering the contrast of the screen is intuitively easy, as is the key layout and graphing interface. Mathematic tools are substantial, including viewing equations, graphs, and coordinates simultaneously; advanced statistics and regression analysis, graphical analysis, and data analysis; and tools for engineering, financial, logarithm, trigonometry, and hyperbolic functions. The calculator is ideal for students in algebra, calculus, and statistics, as well as those taking the PSAT/NMSQT, SAT I or II, and AP College Board Tests.

  • Includes TI-GRAPH LINK for Windows and unit-to-unit cable
  • Over 1.5 MB memory; stores up to 94 applications
  • Split screen to display graph and editor or graph and table
  • Pre-loaded with popular Handheld Software Applications
  • Interactive equation solver
  • Over 1.5 MB memory, stores up to 94 applications

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Wednesday, October 12, 2011

Mathmaticious

Made by SumersetInc Its about the 8th-9th grade Matreial. LYRICS Four, three, two, one Listen up, ya'll, 'cause this is it The numbers we're making are so vicious Mathmaticious expeditious can be kind of scary I hope my answers aren't radical or imaginary I convert percents to fractions, it brings me some satisfaction Like scientific notation and order of operations Mathmaticious (repetitious) Gets me expeditious My answers may get vicious My eraser's left in stitches I make wishes (woo-ah) I get the answer right, right And I'll be staying up all night just to check what I write Mathmaticious (The Pythagorean Theory) Mathmaticious (Finds the hypotenuse for me) Mathmaticious (Or I'll use trigonometry) I'm Mathmaticious (ddddd-decimal, decimal) Locus of the points Locus of the points Locus of the points (points is echoing) I'm up about figuring out greatest common factors And when I make a pie chart I'm in need of a protractor The angle of elevation, thanks to my calculations Turns out to be 43, a prime number I'm Mathmaticious (Mathmaticious) It makes me so ambitious My answers are judicious Calculator never glitches It's my mission I get the answer right, right And I'll be staying up all night just to check what I write Mathmaticious (What's the probability?) Mathmaticious (Of me not labeling my axis) Mathmaticious (When graphing inequalities) Mathmaticious (hold, hold, hold, hold, hold up, check your work) Computing areas Quadratic formula Graphing parabolas I think they ...

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Tuesday, September 13, 2011

Re: Mathmaticious

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Friday, September 9, 2011

HP 50g Graphing Calculator (F2229AA#ABA)

!±8± HP 50g Graphing Calculator (F2229AA#ABA)

Brand : HP | Rate : | Price : $90.89
Post Date : Sep 09, 2011 09:20:52 | Usually ships in 1-2 business days

The new HP 50g Graphing Calculator provides the best in power, flexibility and connectivity for math, science and engineering professionals and college students. It now features a more capable SD card slot, 2.5 MB total memory**, new RS232 and USB connectivity, and a built-in intelligent editor that gives you more capability than ever before.

  • New display upgrade--the new HP 50g display features a 30% increase in usable space over the HP 49g+
  • New powerful SD card slot allows you to format your card right in the calculator and expand memory
  • Massive 2.5 MB total memory--512 KB RAM plus 2 MB flash ROM for performing future upgrades**
  • New larger equation library and 2300+ built-in functions--ideal for both professionals and students
  • The choice of efficient RPN, Textbook or Algebraic data entry

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Saturday, September 3, 2011

Texas Instruments TI-84 Plus Silver Edition Graphing Calculator

!±8±Texas Instruments TI-84 Plus Silver Edition Graphing Calculator

Brand : Texas Instruments
Rate :
Price : $108.99
Post Date : Sep 03, 2011 09:35:18
Usually ships in 1-2 business days



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Friday, August 26, 2011

Watch the story

!±8± Watch the story

The need arose to measure time with the development of agriculture. The farmers were the days best plants and primitive lunar calendar periods to be determined.

The Egyptians were the first to widely develop a means to measure time with clocks and calendars. By about 2800 BC they had established a 365-day calendar, based on their observations, the rise and fall of bright stars like Sirius and the periodic flooding of the Nile, thedependent on their agriculture. By 2100 BC the Egyptians the opportunity to share the day was developed in 24 hours. Around the same time made the first sundials or shadow clocks to measure time during the day. A sundial shows time of day for the position of the shadow of an object falling on the rays of the sun.

In 1500 BC the Egyptians had another way, more precise measurement of time in water, or water clock, which uses the constant dripping of water from one container to another disk inventedmechanical device that tells the time.

Babylonian astronomers' development of the water meter, taking into account the equation of time due to the varying distance between Earth and the sun causes, how it moves in an elliptical orbit. Since this effect could the lunch hour before or after the time when the sun is high in the sky.

Designed around 270 BC, the Alexandria Technical Ctesibios water clocks, the bells were ringing, dolls, and caused the mechanical singing birds.The water clock remained in use until the development of mechanical clocks nearly 3,000 years later.

The measurement of short intervals, but it has been possible with the hourglass. The search for precision watches began with the late medieval flourishing trade and the first fruits of the scientific revolution. This must lead the mechanical clock, time with simple weighted pendulum is measured. But these were not viable.

The first watches

The invention of the sources andMechanism of inhibition marked the era of portable clocks. The inhibition is a mechanism that limits and controls the execution of the clock, converting what would otherwise be simply an energy relaxation, releasing in a controlled environment and regular. The escapement does this by interlocking with a gear in a simple, "driven" and that between a state "free", with a sudden turn the latch on each end of the cycle. The escapement also for the same reason produces the ticking noise characteristicmechanical watches.

Another mechanical method is the mechanism wheel balance. The balance with the balance (also known as spiral) - this form of a simple harmonic oscillator that controls the movement of the march of the clock in a similar way the pendulum of a grandfather clock. This is possible because the inertia of the barbell is fixed, and the wheel as a whole provides a regular motion of known period. These produce watchesTick.

Purely mechanical watches are still popular. The craftsmanship of purely mechanical watches is much of its attractiveness. Compared to electronic movements, mechanical watches are inaccurate, often with errors of seconds per day. They are often sensitive to the position and temperature, are expensive to produce, they need regular maintenance and adjustment, and are subject to errors.

Improved accuracy was achieved in the sixties byTuning fork watches use a tuning fork at a precise frequency changer (usually 360 Hz) for a mechanical watch. Since the fork is used instead of a typical balance wheel, these watches are naturally hum instead of tick. Tuning fork movements are electromechanical. The task of converting electronically pulsed fork vibration into rotary motion by means of two tiny fingers precious stones, such as latches, one of which is connected to a tuning fork made. As the fork vibrates, the pawlsOnly a small index ratchet wheel. This index has over 300 bikes barely visible teeth and spins more than 38 million times a year. The tiny electric coils that drive the tuning fork have 8000 turns of insulated copper wire with a diameter of 0,015 mm and a length of 90 meters. This amazing feat of engineering was in 1950's and early 60's as a prototype.

Advent of electronic quartz watch in 1969

Max Hetzel in 1948 used an electronic device, a transistor, which createthe first electronic watch. This development is obsolete with the use of a quartz crystal in quartz watches that use the piezoelectric effect in a tiny quartz crystal to provide a stable time for a mostly electronic movement: the crystal oscillator is a Quartz, a specific resonant frequency and very stable, and the pace can only be a timing mechanism. These movements are mainly oriented electronics to drive mechanical hands on the facethe clock. Quartz movements are ten times better than a mechanical movement.

Other developments were the following types of clocks:

Manual watches

Bred in the spring clocks manually, you should periodically turning the crown of the watch.

A winding or automatic watches

An automatic transmission or automatic is what is the spring of a mechanical movement with the natural movement of the wearer's body wraps.

Automatic kinetic powerQuartz

Some electronic watches are powered by the movement vector with the power clock. Kinetic powered quartz watches use the motion of the arm turning a rotating weight, which makes a battery to power a generator that runs the clock manager. The concept is similar to the one-winding spring movements, except that the power is generated instead of mechanical force of the spring.

Battery-powered watches in 1957

ElectronicWatches require electricity as an energy source. Some mechanical movements and hybrid electronic-mechanical movements also require electricity. Normally, the flow through a replaceable battery. Watch batteries (strictly speaking cells) are specially designed for the purpose. They are very small and provide small amounts of energy continuously for long periods (several years or more). Mercury batteries, which are harmful to the environment than silver oxide and lithium batteries. InexpensiveThey are alkaline, silver oxide, the same size, but provides a shorter duration. The batteries are used in some solar powered watches.

Wrist Light

Some electronic watches are powered by light. A photovoltaic cell on the face of the watch converts light into electricity, which in turn uses a rechargeable battery. The watch movement is powered by the battery. Until the clock regularly exposed to strong enoughLight (sunlight, for example), does not need to replace the battery, and some models need a few minutes of sunlight to provide energy in weeks.

Some of the early solar watches of 1970 had a unique and innovative design, the array of solar cells is necessary to feed them (Nepro, and some models of Cristalonic Sure, Alba, Seiko and Citizen) to accept. Over the decades, has developed and improved the efficiency of solar cells, while the current needs of the movement and displaydecreased, solar watches began designed to look like other conventional watches.

Radio-controlled movements

Some electronic quartz watches are able to synchronize with an external time source. These sources include the time radio signals directly driven by atomic clocks, time signals from GPS navigation satellites, the German DCF77 signal in Europe, WWVB in the U.S. and others. These watches are free-running most of the time, but close at regular intervals, theautomatically selected external source of time, usually once a day.

Since these watches are regulated by an external time source extremely high precision, never have more than a small fraction of a second day (depending on the quality of their quartz movements), provided they receive signals external time they expect. In addition, long-term accuracy comparable to that of the external timing signals they receive, which in most cases (eg GPSSignals and special radio broadcasts of the time based on atomic clocks) is better than 1 second in 3 million years. For practical purposes, then keep almost perfect time radio watches.

To synchronize the movements of this kind not only the time of the day, but also the date, leap year status for the current and the current state of daylight saving time (on or off). You can get all this information by external signals they receive. For this reasonContinuous auto-update, never had a manual or reset.

One disadvantage of remote control of movements is that you do not synchronize if radio reception is poor. In this case, however, will simply run autonomously with the same precision as a normal quartz watch until they are next able to synchronize.

See display

Have been developed in the seventies, two types of displays.

Analog display

A numbered dial, mounted onat least a rotating hour hand and a hand longer, turning minutes. Many watches also have a third hand that shows the current minute of the second current. Watches powered by quartz have second hands that snap every second to the next marker. Watches have a mechanical movement powered by a "second hand", the name comes from its uninterrupted smooth (sweeping) movement across the markers, the hand only moves in small increments, typically 1 / 6 of a second, according to the rhythmbalance. All hands will be produced are usually mechanical, physically rotating on the dial, although a couple of watches with the "hands", simulated by a liquid crystal display.

Digital display

A digital display simply shows the time as a number, such as 0:40 AM instead of a hand pointing to the short number 12 and a long hand pointing to the number 8 on a dial.

The LEDs were (LCD) are replaced, the less energy and have been usedmuch easier to use, the display always visible and do not have to click a button to push ahead of time.
Since 1980, technology in digital watches greatly improved. The new features have been added each year.

1982 Seiko produced a small clock with built-in screen TV

1983 Casio produced a digital watch with a thermometer and another to see that 1500 could translate the Japanese words in English

1985 Casio produced the CFX-400 scientific calculatorobserved.

1987 Casio produced a watch that your telephone number and Citizen you may respond to your voice can dial.

1995 Timex release a watch, which allows the wearer to download and store data from a computer on the wrist.


Watch the story

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Friday, August 12, 2011

The Calculator Top 6 Apps for iPhone

!±8± The Calculator Top 6 Apps for iPhone

Our recent article on the Top 6 Computer Applications for Android has been a great success, and since then we always search through IOS. You asked and we deliver. We have to be Apple's App Store for our favorite six applications for the iPhone and the iPod touch looking for. Since there were large differences in the cost of applications, we set the basic rule for applications seeking to cost less than $ 5. In fact, the list made available to be our favorite iPhone apps-6 computerless than $ 3.

No. 1 + graphing calculator with xNeat.com

+ Graphing calculator is our choice for the best application for iPhone to your computer. And 'greatest strength is that there are so many different things is good. A button can easily switch between different computers ways. These modes are graphs, scientific, handwriting, is a polynomial and linear equations calculator calculator. There is still room for improvement. In particular, we had a scientific calculator fractions, andThe Grapher to follow. But the application is simple and powerful, and the fact that it automatically finds Max, Min, and starts fairly compensated for the lack of trace elements intersections.

Pros: support of writing, scientific graphing solver, quadratic and cubic systems of linear equations

Cons: The mode of writing is not always accurate, only decimal

Cost: $ 2.99

# 2 of Graphicus Serafim Chekalkin

We're big fans of Graphicus. If only all the graphing calculators wereThis easy to use. No need to read the manual here, jump right in. Graphicus brings you almost all the information possible on the Cartesian, polar and parametric graphs takes an extremely elegant user interface. Trace, extremes, points of inflection tangents are all easily accessible with a few taps of your fingers. It is downward, there is a simple scientific calculator. There is also a pain in the small that there is no 3D application that focuses 100% on the graphics, but there is only one appin this list, 3D.

Pros: Offers everything starts graphically, trace elements, turning points, max / min, complete

Cons: Only one Grapher

Cost: $ 1.99

# 3 by Janos Barkai symbolic calculator

If you need a DAC for your iPhone, this is the application for you. For those who have used a TI-89 will make you feel at home with the calculator symbolic. The focus of this application, is the computer algebra system, and the interface is easy enough for users with TexasComputer Tool CAS. If you're new to CAS, you just tap the question mark next to a particular command, and opens up an example to show how the syntax accordingly. You can also use this application on the charts, even if it feels a little 'illogical, until you get the hang of it and the graphics features are simple compared to some of the other applications in this list.

Pros: For a CAS, easy to use, for example, provides input for each

Cons: Graphic representation could be better MathPrintonly after entering

Cost: $ 0.99

# 4 of Tezmo And Graph

Another excellent Grapher is displayed graphically. This is also pursuing a full-featured Grapher, the ability to find intercepts and roots, as well as provides graphical derivatives and integrals. It also offers a full scientific calculator with two-line display. The interface is ok, but could use some getting used to for some users, especially for the scientific calculator mode.

Pros: Full Grapher present, a fullscientific calculator

Cons: user interface takes some 'getting used to

Cost: $ 0.99

Chart # 5 Quick Columbiamug

For those who need a 3D graphics application that is quick to make the graphics path. There are other positive also use this as a strong user interface, easy to polar coordinates, and a good 2-D graphical interface. Screen caps are another characteristic under construction. The unique feature is true, but the 3D, which is well made and well-accepted cylindrical and spherical coordinates. TheYou can use this application as a scientific calculator, but the interface feels a bit 'weird.

Pros: Polar and 3D graphics screen caps

Cons: No track is not for non-graphics computing evolves

Cost: Free

# 6 from Infinity Softworks powerOne THE

Not everyone is looking for a chic Grapher. For those looking for a standard scientific calculator, THE powerOne fit the bill. He has a very intuitive interface that is obtained immediately.Powereone unit also offers a currency converter and exchange rates is the current internationally. Moreover, given his computer a simple statistic, the average of a series of numbers found. It would be better if scientific functions using a two-door.

Pros: Easy to use, nice user interface, the currency / unit converter remains, to date, simple statistical analysis

Disadvantages: A calculation in line, no graphics

Cost: Free with the possibility of further upgradepowerful version for $ 5.99


The Calculator Top 6 Apps for iPhone

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Monday, August 1, 2011

Texas Instruments TI-89 Titanium Graphing Calculator

!±8± Texas Instruments TI-89 Titanium Graphing Calculator

Brand : Texas Instruments | Rate : | Price : $132.99
Post Date : Aug 01, 2011 16:48:48 | Usually ships in 1-2 business days

Texas Instruments Graphing Calculator TI-89 Calculators

  • Graphing calculator handles calculus, algebra, matrices, and statistical functions
  • 188 KB RAM and 2.7 MB flash memory for speed; plenty of storage for functions, programs, data
  • Large 100 x 160 pixel display for split-screen views
  • USB on-the-go technology for file sharing with other calculators and connecting with PCs
  • Backed by 1-year warranty

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