Friday, November 25, 2011

SAT II Math with TI Solving algebraic equations in radians with TI 83 84 5 of 7

Courtesy Texas Instruments - How to solve equations with TI 83 - 84 brand of graphing calculators and solving trigonometric equations in radians with TI 83 - 84 in particular. Extremely essential techniques to ace the SAT Subject Test Math Level 1 and Level 2 as well as the ACT Math Test by Rusen Meylani

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Sunday, November 6, 2011

Linear Regression with Microsoft Excel

!±8± Linear Regression with Microsoft Excel

You use Excel's linear regression functions to find a linear equation that best describes a data set.
Excel uses the sum of least squares method to find the straight line of best fit. People often
try to predict future amounts by assuming linear growth and extending the line forward in
time. For example, if you have a series of sales data for 9 months and want to predict the
sales in the 10th month, you can use Excel's linear regression functions to find the slope and
y-intercept (the point on the y-axis where the line crosses) of the line that best fits the data.

Some Background Info on Linear Regression

To use the linear regression functions, it helps to remember the equation for a line:

y=mx+b

where y is the dependent variable, m the slope, x the independent variable, and b the
y-intercept. If there are multiple ranges of x values, the equation looks like this:

y=m1 x1+m2x2+.mnxn+b

NOTE To visualize and experiment with linear regression, visit the interactive web page at
[http://www.math.csusb.edu/faculty/stanton/m262/regress/regress.html]. Click the
graph area to add data points (x,y) to the graph. The applet draws the straight line
that best fits the points you add, adjusting the line for the new data points you add.

Using the FORECAST Function

The FORECAST function predicts a future y-value for the x-value you specify using existing
x and y values. The FORECAST function uses the following syntax:

=FORECAST(x, known ys, known xs)

where x is the x-value for which you want to predict a y-value.

Using the INTERCEPT Function

If you have existing x and y values, Excel can find the straight line that best fits the data and then calculate the point at which the line intersects the y-axis, in other words, the value of b in the "y=mx+b" equation. The y-intercept is useful when you want to know the value of the dependent variable when the independent variable equals 0.

NOTE: The INTERCEPT function returns the same value as the FORECAST function if you enter 0 for x in the FORECAST function.

The INTERCEPT function uses the following syntax:

=INTERCEPT (known ys, known xs)

Using the LINEST Function

The LINEST function returns the value of m and b given at least one set of known ys and known xs. The LINEST function has the following syntax:

=LINEST (known ys, known xs, constant, statistics)

where known ys is the array of y values you already know, known xs is the array of x values you may already know. If you leave out the known xs, they are assumed to be 1, 2, 3,...n. If constant is set to FALSE, b is assumed to be 0. If statistics is set to TRUE, the LINEST function also returns the standard error for each data point.

NOTE: If the known ys are in a single column or row, then Excel considers each column of
known xs to be a separate variable.

NOTE: The array known xs can include multiple sets of variables. If you use only one set, then known ys and known xs can be ranges of any shape, as long as they have equal dimensions. If you use more than one variable, then the known ys array must be either a single column or a single row. If you don't enter known xs, Excel assumes this array is the same size as the known ys array.

Using the SLOPE Function

Use the SLOPE function to find the slope (m) of the linear regression line from the known x and known y data sets. The slope is the change in y over the change in x for any two points on the line. The SLOPE function in Excel uses the following syntax:

=SLOPE (known ys, known xs)

A positive (upwards) slope means that the independent variable (such as the number of salespeople) has a positive effect on a dependent variable (such as sales). A negative (downwards) slope means that the independent variable has a negative effect on the dependent variable. The steeper the slope, the more effect the independent variable has on the dependent variable.

Using the STEYX Function

Use the STEYX function to find the standard error of the predicted y-value for each individual x in the regression. The STEYX function uses the following syntax:

=STEYX (known ys, known xs)

Using the TREND Function

Use the TREND function to find values along a linear trend. Specify an array of new xs and the TREND function uses the method of least squares to fit a straight line to the known x and y data sets and return the y-values along the line for the new array. If constant is set to FALSE, the "b" in the y=mx+b equation is set to zero. The TREND function uses the following syntax:

=TREND (known ys, known xs, new xs, constant)


Linear Regression with Microsoft Excel

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Monday, October 24, 2011

Buying a Graphing Calculator - Don't Buy the Calculator With a QWERTY Keyboard

!±8± Buying a Graphing Calculator - Don't Buy the Calculator With a QWERTY Keyboard

If you're in the market for a graphing calculator you'll notice that they have become quite sophisticated pieces of technology. The latest models from top companies such as HP and Texas Instruments have features that a few years ago would have been considered the realm of science fiction. If you are buying a graphing calculator because you will be taking the SAT or other standardized tests then you must take each exam's calculator policy into consideration.

Organizations that administer standardized tests, such as the College Board (administrators of the SAT, PSAT, and AP Exams) have strict guidelines about what types of calculators are permitted for use by test takers. If you bring a calculator to the test center when you take one of these exams and it is not on the list of approved calculators then you won't be able to use it.

Although some organizations' calculator policies list specific models that you can use others provide general guidelines of acceptable and unacceptable functionality. Following is a list of common features that will keep a graphing calculator off most lists:

o Has a QWERTY (typewriter-like) keypad as part of the hardware or software.

o Has an electronic writing pad or pen input device, stylus, or touch screen.

o Has wireless or Bluetooth capabilities; can access the internet.

o Has recording (audio / video) or scanning capabilities; has a camera.

o It makes noises or "talks".

o Has a paper tape.

It is also important to know that some organizations disallow test takers to use any hand-held calculators. If this is the case for a mathematics or science base exam then it is most likely because an online calculator is provided.

It is okay to bring a calculator that has memory. However, you will be required to delete anything you have stored in it before and after the test. You are not allowed to bring examples into the exam and you are not allowed to bring actual questions out of the exam.

Graphing calculators are not inexpensive. You don't want to spend all school year practicing SAT math questions only to find out a week before the exam that you can't use your calculator and have to buy another one. Make sure that for every standardized test you are planing to take that you are aware of its calculator policy.


Buying a Graphing Calculator - Don't Buy the Calculator With a QWERTY Keyboard

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Sunday, October 16, 2011

TI 83 Plus Graphing Calculator

!±8± TI 83 Plus Graphing Calculator

The TI 83 Plus Graphing Calculator can do so much for you when it comes to High School Math, as well as College Math classes. If you're in the market to get one today, I wanted to point out why you should get it, and what it can do for you, when it comes to calculating formulas.

Perfect for the ACT, SAT, and PSAT, this handy calculator can do just about anything you can tell it to. In fact, it can even do the formula just like it is in your math book. For example, if you have a problem in your book, you can download the App4Math app and it can figure out the problem for you. There's no more trying to figure out how to do it all on the calculator.

Key features on the TI 83 Plus Graphing Calculator:

It has an upgradable operating system and software, where you can always stay on top of technology, and you don't have to worry about your calculator becoming obsolete.

You can now download study apps like the ones I talked about above. You can compare these to the apps on the systems such as the iPhone. This is great for adding additional software to your phone.

If that's not enough, you can also make it compatible with older editions such as the TI-84 and TI-84 Plus Silver.

With a one year's warranty, it's no wonder why many students tend to take this route when it comes down to getting a calculator for the classroom.


TI 83 Plus Graphing Calculator

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Saturday, September 24, 2011

BSE Online Index

!±8± BSE Online Index

Stock brokers in India have reasons to work with the Bombay Stock Exchange index up by showing a smile, even if at a slow pace. The great recession, many companies had been charged directly to the BSE and BSE stock prices. BSE, also known as the Bombay Stock Exchange 30, is prominent for more than 134 years and is the oldest exchange in Asia. The Indian corporate sector growth can be attributed to the role played by the BSE, the journey from the open outcry systemThe current method of online trading screen base is anointed with a series of innovations.

Today there are thousands of stockbrokers and online brokerage platforms, which thrive on BSE, including investors involved in facilitating exchanges easily at any time, anywhere. The investor can now check online to buy the stock prices of BSE through the online platform, or the Bombay Stock Exchange Portal and sell shares and accordingly at the appropriate time. These platforms also provide stock recommendations thatare listed on BSE. As an investor you can buy, test and sell stock recommendations at any time, regardless of their location.

BSE is followed around the world and the Bombay Stock Exchange index tracks 30 companies listed on 12 major industries is measured by the Sensex on a "floating" method. According to the latest market news, Siemens is exchanged over the Bombay Stock Exchange after winning two huge orders from Power Grid.

Fluctuations occur for changeMarket dynamics and areas to climb the chart in the BSE index, the next moment or a few hours, the descent. Everything depends on the competence of investors and analysis of BSE 30 and BSE stock prices. According to one poll found that nearly 90% are losers and winners will be only 10% in equities. Profitability remained constant when you are dealing with mechanical systems, take advice of experts to examine the market trends accurately identify the changing trends, andRelated accessories.


BSE Online Index

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Wednesday, September 7, 2011

Fat Loss 4 Idiots - the healthy way to lose fat?

!±8± Fat Loss 4 Idiots - the healthy way to lose fat?

Fat Loss 4 Idiots get rid of swelling in any order he wants more. Most diet plans today offer slow and slight changes to your fat loss program. If you're like me, who are very frustrated and worried all the diets and the high number and low weight used in my tables, you should take a moment to read this. This article will help you to digest, and collect all the facts and information on Fat Loss 4 Idiots.

Along with the frustrating problem of the weight stillfrustrating no-carb, counting calories, almost no-food diet that most programs have. Before answering that, let me tell you that I have saved different diet plans. For 11 days I was able to cut, as 9 pounds from the average of 6-8 pounds off my weight. Fat Loss 4 Idiots made it easy for me, is not counting calories, stop eating carbohydrates, and it was easy for me to stay.

The weight loss for idiots is another name for this program passes,You learn how to lose weight drink while you eat 4 meals a day and more water. I was tired of trying, starve me to eat one meal a day, Fat Loss 4 Idiots has shown me how the food, I like to eat and still lose weight. With fat loss for idiots, there is no need to feel guilty while eating your favorite food to eat or four meals a day.

Using Fat Loss 4 Idiots Diet Calculator online to find the menu design is most effective for your weight loss, you are guaranteed to lose weight off.Even if you are with the assurance they are interested in fat loss four idiots, is a wholly-back guarantee. Weight Loss 4 Idiots' is so effective that you read different fat loss for idiots review and bored, for they will all say the same thing - it works!

When you visit the Web site Fat Loss 4 Idiots', do not believe what is written. All fat loss for idiots reviews were, as in a short period of time, fat loss 4 idiots swelling and lovers lost weight and you will receive fourMeals a day. Some forums also had a special section on its website for Fat Loss 4 Idiots do, because it was so popular. It 'impossible to stumble upon a forum and not hear about fat loss for idiots.

All fantastic and amazing reviews and information on weight loss 4 idiots can seem overwhelming. If you're struggling with your weight, as I have all my life then fat loss for idiots will show you how to lose weight and keep it off. If you think this is a publicity stunt,So do not take my word, and thousands of words of the people for them, after all, you have nothing to lose but the weight and swells.


Fat Loss 4 Idiots - the healthy way to lose fat?

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Sunday, August 28, 2011

Better graphics calculator

!±8± Better graphics calculator

The Casio Company was the first computer graphics in the world. Since then, other companies, followed by many different versions of the fx-7000G, the original graphic calculator. Hewlett Packard is known for making many computers has created a series of models in the 90s. The graphing calculator is also a portable device was soon to be part of such notebooks. Now you can free graphing calculator on the Internet with ease and use of the system.

ManyPeople like the opportunity to have the program so that you can buy your own program and to invite to spice up your notebook or desktop computer, or perhaps just prefer those who are online use. You can still see the hand patterns to use for what purpose you need. Newer models like the current HP 50g (model 2006) by providing a computer algebra system (CAS) that can manipulate symbolic expressions and analytic solution.

The graphing calculator designed primarily for professionalsScience / technology markets is still available for the professional, but it was done in a simple way to allow high school and university students for training to the professional world. Texas Instruments produces models that are capable of holding large amounts of memory are for the professional. Texas Instruments graphing calculator, which is designed only for 10-14 years so that a student starting at a young age with the system. It 'important to start early witha graphing calculators as educators seek to dominate more, when you get older and are in a higher grade.


Better graphics calculator

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Wednesday, August 24, 2011

How do you win the lottery

!±8± How do you win the lottery

The games plot is more than just a hobby, a passion. To play this game without any practice and effort, make you lose more often than you win. However, there are ways to buy if followed, can make a profit. There are many professional players of the lottery, how to solve the puzzle correct winning numbers to predict, but could not do this, attempts have been made. However, there is a mathematical genius, that plays a model that can be decoded and resolved to follow in order to get the right has been demonstratedPay for the next drawing.

To test the first sample of the game and record the winning numbers of the game is played on an e-book. If you find this difficult you can use the software model-Lot, one of the best mathematical tools available, is for you. This analysis software works, have appeared in this order numbers in the past to give the frequency and the model followed by the game.

You can also taste the lottery software to evaluate thehot numbers, cold numbers and play the game for you. Once these numbers in hand, it increases the accuracy in predicting the outcome of the next drawing. The software displays the number of assessment in the form of graphics to increase the probability of high ones. A study of the graph you can choose between hot, cold, and to distinguish recurrent figures for the game. This will further improve its forecast for the next drawing.

Instead of buying thousands of lottery tickets for the increaseChance to win out this model using the software to get a win. There have been cases where some players learned and practiced the technique and won the game more than once to wait longer for a fortune or fate and try this technique with a pattern of hitting the jackpot one day. Win


How do you win the lottery

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Saturday, August 20, 2011

Variance Calculations with Microsoft Excel

!±8± Variance Calculations with Microsoft Excel

Excel provides useful statistical functions for finding the variance of a data set. In general, these functions variance memorized a set of values ​​called a worksheet range and then calculating the expected.

A detour to remind readers that it is only a common measure to describe the spread of observations in a distribution. A variation is another statistical measure, the relative standard deviation. A deviation is equal to the square of the standard deviation.

Variancea sample of VAR

If the record is to work with a sample, and you do not want to include logical values ​​or text from the amount in the calculation, use the VAR. For example, if you can open a new manufacturing process that should result in increased productivity and a series of data on the number of pieces per day, the variance of the sample. The VAR function uses the following syntax:

= VAR (data set range)

Variance of a samplewith VARA

If the record is an example, but you want to include logical values ​​or text in the calculation, use the VARA function. Excel includes cells containing the logical value TRUE as 1 and cells containing text or FALSE 0 The VARA function uses the following syntax:

= VARA (data set range)

Variance of a sample with VARP

If the record is to work with people, and you do not want to include logical values ​​or textthe amount of calculation, use the VARP. The variance function uses the following syntax:

= VARP (data set range)

Variance of a population with the VARPA

If the record is a population, but you want to include logical values ​​or text in the calculation, use the VARPA. The VARPA uses the following syntax:

= VARPA (data set range)

One last note about the topic Data Range in September

Another tip: you can have moreWorksheet as the set of interval data is sufficient argument for the use of variance functions. For example, if you were to calculate the variance of a sample of VAR and had the data in different ranges saved worksheet, your VAR as follows:

= VAR (B1: B: 10, B101: B110, B200)


Variance Calculations with Microsoft Excel

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Thursday, August 11, 2011

As a parent, you will find the answers to math problems a child

!±8± As a parent, you will find the answers to math problems a child

After some research reports, some students are referred to special education testing for mathematical disabilities. In fact, mathematical disabilities do not exist as a structured whole in testing situations, but rather a set of skills, usually distilled in calculating arithmetic or disability. Children and adults who are not remember multiplication tables or a series of numbers can often disabled or non-created, while those who have said, it is believedspatial talents are often seen as a talent. Many separate mathematical abilities and disabilities can exist side by side and can be neglected, based on the teacher or the school method of teaching mathematics.

What can be considered as the mathematical ability depends not only on mathematics, but must also take account of spatial reasoning, symbolic thought, logic and solving large.

Many have a child as an autistic savant who can say, listen to the famoussomeone on the day of the week they were born within a few seconds, as when only the date of birth. There are many people with a high degree of intelligence and capacity in a very narrow range, such calculations are blessed by calendar dates, but lack of skills in larger areas, more generally accepted.

While many students have difficulty remembering multiplication tables and formulas, students can have the same talent for solving problems or programming.Mathematical reasoning is not monolithic and not easy to define quality.

If a parent feels the child and the class struggles with math, can not mean that the child needs remediation in all areas of mathematical reasoning. Various techniques, such as drills, or mnemonic, may help alleviate the difficulties specific and sensitive with a qualified teacher or educator.

If a parent is the child fails the math, it is important to ask yourself some questions: What specificCompetence is my child is deficient? Calculation? Reasoning? Logic? Verbal problems? Spatial relationships?

If teachers can not specify the areas that need improvement in order to identify weaknesses request a review of the child's anecdotal. It is the mathematics curriculum focused on specific areas of expertise? If yes, which areas?

The child appears to have specific problems with the language of mathematics? In this case, the teacher gave students a full and detailed list ofDefinitions of terms used in the course? They are mimeographed sheets rather than modeled lessons with tasks used as reinforcement? And 'the child time and the possibility of using manipulatives in the classroom, it seems difficult to understand word problems?

It 'important to remember that no one is born mathematically challenged, and that many of them are born with a large capacity in a very narrow range. Working to expand a child's math skills, with the teacherdetermine if the child's problems in the area of ​​language or perception of the amount of space or lie.

If after talking with the teacher, parents have questions about different defects, the questions should be pursued to the department chair or principal.

The parents of a child are often the best advocates for the best possible education.


As a parent, you will find the answers to math problems a child

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Sunday, August 7, 2011

The importance of Excel in the workplace

!±8± The importance of Excel in the workplace

Excel is perhaps the most important computer software program used in the workplace today. That's why so many employees and potential employees are required to learn Excel to enter or remain in the workplace.

From the standpoint of the employer, particularly in the field of information systems, the use of Excel as an end user tool is essential. Not only do many business people use Excel to perform everyday activities at work, aEmployers increasingly rely on Excel for decision support.

In general, the sector dominated Excel spreadsheet with an estimated market share of 90 percent. Excel 2007 has the ability to spreadsheets up to one million rows by 16,000 columns, which allows users to import and work with large amounts of data and computing capacity faster than ever.

Outside of work, Excel is in widespread use to solve everyday problems.

Suppose we havea home office. You can use Excel to calculate sales tax on a purchase, calculate the cost for a ride by car to create a temperature converter, calculate the price of pizza per square inch, and do the analysis of the data entered. You can determine your debt, income and assets, debt to income ratio, calculate the net value, and use this information to prepare the process of applying for a mortgage on a new house. The uses for Excel are almost endless as the company for usethis software - and an Excel tutorial explores the practical benefits of the program for personal computers and business.

The use of spreadsheets on computers is not new. Spreadsheets, in electronic format, has been around since before the introduction of the personal computer was. Precursor Excel and Lotus 1-2-3 were packages such as VisiCalc, developed and shaped the financial accounts of the auditor. Since 1987, computer programs have an impact on the business world. Along the way,Computer tables have become a ubiquitous and increasingly powerful tool for comparative analysis from around the world.

Today end users use Excel to create and edit and edit Web pages with links and formatting specifications for complex spreadsheets. You can create macros and scripts. While some of these small programs, one-shot calculations, many are much more critical and significant influence on financial decisions and transactions.

Widely used byBusinesses, service agencies, volunteer groups, private sector organizations, scientists, students, educators, trainers, researchers, journalists, accountants and others, Microsoft Excel has become a staple of end users and professionals.

The beauty of Excel is that it can be used as a recipient of the data for business or workplace, or as a calculator, a decision support tool, a data converter or even a spreadsheet to view the interpretation of information. In Excel, you can create a chart orGraphics in collaboration with mail merge features, import data from the Internet, create a concept map and use the information sequential order of importance.

Excel offers a new data analysis and visualization tools to detect the information analysis, trends and support the easier access to information than before. With conditional formatting with rich data visualization systems, it is possible to evaluate and highlight important trends and exceptions with gradient colors, data barsand symbols.

In fact, Excel can be customized to such a variety of features that many companies can not function without them are made. Excel Training is mandatory in many workplaces, in fact, computer software training is a must for every workplace to try to keep pace with the times.

Let's say you're an employer with 97 employees, 17 of which are now called sick and want to know the proportion of absences. Excel can do it. You can learn to use Excel anddetermine the ratio of male to female employees, the percentage of minorities on the payroll, and the ranking of individual workers through the amount of severance pay, including the shares of the pay package and benefits. You can keep Excel to keep track of production department, information that may assist in future development plans. You can follow additional tables, suppliers and customers, while the data of a current inventory of available product.

We try toWant to production costs compared to the knowledge of your company. Do not have a math genius - you just need to learn Excel. Excel lets you synchronize, analyze them, sort them according to your individual style, and the results with the color, shading, backgrounds, icons, and other devices that offer time savings as a result of support to locate exactly the information you want. If this table is for presentation, Excel helps you visually togethercaptivating so that the data seem to shine and pop.

The most important thing employers can do is learn Excel - is one of the most important tools in the world of work.

And Microsoft Excel are registered trademarks of Microsoft Corporation in the United States and other countries. Lotus is a registered trademark of International Business Machines Corporation in the United States and / or other countries.


The importance of Excel in the workplace

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Saturday, August 6, 2011

College graphing calculator

!±8± College graphing calculator

Many teachers of mathematics at the school in Canada and America, allows its students to use graphing calculators in class. Courses calculation of the graphing calculator is a necessary part of student organizations. Now the notebook is equipped with the ability to use it as a graphing calculator. The instructors in some classes such as chemistry or physics ban the computer, because they have the ability to keep the entire periodic table.

The tool is a greatTool for students to learn certain mathematical procedures that can be used in their future careers, but the student must ensure that it can not rely on computers for their classroom studies. This could be a source of fraud that would keep students learning properly made. It 'just so easy on this machine, that most students do not realize that they do not learn the mathematical techniques, but rely a function ofTool for the complete answer.

Many of the teachers of high schools and universities, students must follow the information on a regular landfill, to keep things on an even during rehearsals. This may work well for trainers of their students learn with their calculators during the test of time and can use what they take to the responses of access to computers to learn to find the answers. This is a requirement by most of the students meet during their learningProcess while participating in a math class.


College graphing calculator

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Monday, July 25, 2011

Texas Instruments TI-89 Titanium Graphing Calculator

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

Brand : Texas Instruments
Rate :
Price : $119.98
Post Date : Jul 25, 2011 15:39:53
Usually ships in 1-2 business days



Texas Instruments Graphing Calculator TI-89 Calculators

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