If you are given an equation of ellipse in the form of a function whose value is a square root, you may need to simplify it to make it look like the equation of an ellipse. Now equate the function to a variable y and perform squaring on both sides to remove the radical. Now simplify the equation and get it in the form of (x*x)/(a*a) + (y*y)/(b*b) = 1 which is the general form of an ellipse. Now you will have the x and y intercepts which are a and b respectively. Using this values graph the eq...
In this tutorial the instructor shows how to complete the square to graph a quadratic function using transformations. You can do this by transforming your equation in a series of steps. First make the coefficient of the square term to one by pulling out its numerical coefficient. Now to complete the square of the first part add half the coefficient of the variable with a degree one. Now to maintain the original value of the equation also make sure that you subtract the same value from the equ...
In this video the instructor shows how to use the Round function and also format numbers in Microsoft Excel. Normally while calculating formulas in Excel, the formatting of numbers can get you into a lot of trouble and to get around this problem you need to use the Round function. To do this take some sample data in a Excel work book and apply any formula that you want on the data to arrive at some calculation. Now because of this formatting some times you can arrive at a wrong result as show...
In this installment of the Excel Basics Series you'll learn how to use formulas to calculate an annual interest rate, as well as breaking it down to a monthly rate and an effective annual rate. A general knowledge of Excel is helpful for navigating the menus in Excel, but if you pay attention during this presentation you'll pick up the skills quickly! Several ideas covered in this video are Formulas with cell references, how to find various Excel functions to use in formulas, and the Effect f...
Excel dilettantes and seasoned Microsoft Office Pros alike are sure to delight in this tip, which comes to us by way of the 540th installment of ExcelIsFun's series of Excel magic tricks.
Excel dilettantes and seasoned Microsoft Office professionals alike may be surprised to learn that in Excel one can make a drop down list based upon a second drop down list (or, similarly, data validation list that is based on a second validation list).
In this Excel magic trick video the tutor shows how to change operator in a formula from a drop down using Choose function. He shows a basic work book which can be downloaded from the internet for hands-on to the tutorial. In this trick the tutor shows how to include some operators in a drop down box of a cell and based on this drop down value change the operators in equations that are using this cell there by dynamically altering the equation and the value produced using the equation. For th...
This video shows you how to calculate weighted average cost from a transactional data set using SUMPRODUCT function. It explains things very clearly. If you're working with a very large database transactions the SUMPRODUCT function makes it. It works as text if you do the formatting first and then type the number. We put the number in first and then format as text, then press F2 and ENTER.
This video is one of the amazing videos in which we can see the use of the vertices in real application. The video gives a clear explanation on how to use vertices into optimization function. This is a not only basic example in mathematics but also an important foundation for the advanced problems in mathematics. Viewers can gain a clear idea about the vertices and how they are used in an optimization function. This is a very essential part of mathematics which every student should learn abou...
Austin from 'Best Buy Tips and Tricks' give out a mobile tip on how to extend the battery life of your Blackberry by using the Blackberry's built-in function called the automatic black light dimmer. This function changes the brightness of the back light automatically depending on the light intensity of the environment you use the phone. Activate this function as shown in the video so that your phone changes the brightness of your Blackberry screen to an optimal level depending on the environm...
Bucky from The New Boston serves up this Python video tutorial on how to build and program your own functions in Python. This is the program you use to write all of your Python code down. Learn how to create your own function!
Bucky from The New Boston serves up this Python video tutorial on how to program lists functions in Python. This is the program you use to write all of your Python code down. Fun with list functions!
Microsoft Office Excel 2007 spreadsheet manager is a powerful tool that enables information workers to format spreadsheets, as well as analyze and share information to make more informed decisions. In this MS Excel video tutorial, you'll learn about using LEN to count word length. To get started using the LEN function for yourself, watch this how-to.
Microsoft Office Excel 2007 spreadsheet manager is a powerful tool that enables information workers to format spreadsheets, as well as analyze and share information to make more informed decisions. In this MS Excel video tutorial, you'll learn about concatenation using LEFT and RIGHT functions. For more information, watch this Microsoft Office how-to.
The Microsoft Office Access 2007 relational database manager enables information workers to quickly track and report information with ease thanks to its interactive design capabilities that do not require deep database knowledge. In this Microsoft Access video tutorial, you'll learn about using the DateDiff function to work out age from birth date. For more, including detailed instructions, watch this Access how-to.
New to the Ruby programming language or simply looking to brush up on your skills? In this installation from his Rubyology series of Ruby tutorials, YouTube user cmatthieu demonstrates some of the cool time functions supported by the Ruby programming language. Make time for and with this how-to.
Watch to learn how to use graphs to help analyze sine, cosine, and tangent functions in trigonometry.
Watch this video to use the calculator functions in C++.
Watch this video to learn about the fundamental commands of C++. Also covered are the topics of custom commands, different file types, headers, and the main function.
Take advantage of the functionality in your function keys by bypassing those volume and brightness buttons.
Learn how to use text functions like mid and find to extract characters from a larger text string within a cell in Excel.
This video demonstrates uses of the left, mid, and find function in Excel 2007 to pull out specific pieces of text from a longer text string.
Several examples of using the VLOOKUP function in Excel 2007.
Learn how to use the sum and autosum functions in Microsoft Excel and you'll appreciate the efficiency of spreadsheets for dealing with data lists. You'll never use a calculator again!
Welcome back everyone. I apologize for the lack of training articles, but I've been rater busy lately. I've recently picked up a second job and my college courses are now back in session, so I'm a bit strapped for time.
For 3D artists new to 3DS Max, learning your way around this massive piece of software can take a long time. It need not do. This video will teach you how to use some of the many hotkeys in the program to navigate it like a pro, easily accessing all of the most popular tools and allowing you to save a lot of time modeling. Now that you know what buttons to press to access functions, watch some of our other 3DS Max tutorials for more advanced functions.
If you use Microsoft Excel on a regular basis, odds are you work with numbers. Put those numbers to work. Statistical analysis allows you to find patterns, trends and probabilities within your data. In this MS Excel tutorial from everyone's favorite Excel guru, YouTube's ExcelsFun, the 12th installment in his "Excel Statistics" series of free video lessons, you'll learn how to use Advanced Filter 'Unique Records Only" to extract a list of unique items from a data base, and then use the COUNTI...
Interested in jockeying discs? Compact discs? If so, you'll want a CDJ, which will permit you to do with your CDs what your turntable permits you to do with your records. In this DJ tutorial, you'll learn how to use the loop function on a Pioneer CDJ turntable. For more, and to get started creating loops on your own Pioneer CDJ-800, take a look!
One of the biggest and most important appliances in a home is the furnace. It's the one source of heat that can't be unkept. Changing the filters, or cleaning the filters, on a regular basis is key to making sure your furnace is pumping out the heat properly. Keep your furnace working as efficiently as possible by following these simple steps.
There are many functions in Microsoft Excel. One function that people rarely use is the Repeat function or REPT. In this video, an example used is a chart of people and their sales of a certain item. Just looking at the numbers, it is hard to compare the different sales easily, but a more visual approach may work better. Next to one of the cells, type in "=REPT(" which is the repeat function. A popup should say "=REPT(text, numbertimes)". For "text", type in *** or anything, really. For "numb...
Routine car maintenance is important for keeping your car running efficiently. Learn how to do a basic car tune-up with tips from a professional mechanic in this free automotive maintenance video series.
Google Maps lets you set home and work locations for quick access to navigation. In fact, these two locations are so central to the Maps experience that if you don't have both saved, the app can be a little naggy about it. But if you work from home, there's just one address to use, so what are you supposed to do?
With a simple social engineering trick, sudo passwords can be captured in seconds without the target's knowledge. The passwords can then be saved to a file or exfiltrated to another computer on the network.
Welcome back everyone! It's been quite a while hasn't it? Today we're going to kick off the second part of the Python training series by introducing modules. We'll start off by explaining what a module is and we'll give an example. So, let's get started!
Welcome to the final tutorial of the series on standard C. This article will cover the linked list abstract data type (ADT). There will be a lot of abstraction to try to deliver the understanding in the most basic way for easiest interpretation of what they are and how they work, then we will get into the guts of it and learn the technical code underneath. For those who have yet to grasp the concept of pointers, it's advisable that you do that first before approaching this. Having learned thi...
What's up readers? We have ever so slightly touched upon this concept of scope with variables but still don't really know what it means. In this tutorial we will learn the behaviors of variables existing in our programs and within functions.
Welcome back, reader! In this tutorial, we will be covering our first program! So let's get to it. We all know the unspoken tradition of the first program when learning a language and of course, here we will respect and complete it. Fire up your favorite text editor (be it vim, emacs, gedit, it's all the same to me, no h8) and try to keep up.
The Calendar app that ships with Windows 10 has a nice little feature that will help make your days more productive by showing the current five-day weather forecast.
When I was a senior in college, I shared a two-bedroom, one bathroom, microscopic kitchenette suite with three other girls. We all loved to bake and cook but were fully aware that we were in for a crowded year. We needed to use space efficiently, which meant carefully picking what kitchen equipment was absolutely necessary. As a full knife set was out of the question, we settled on a Shun Classic Ultimate Utility Knife whose praises my father had sung for a long time.
As one of the most frequently used Android browsers, making Chrome work faster and more efficiently is something we can surely all appreciate. And just like its computer-based counterpart, there are experimental flags for the mobile app that can speed browsing up significantly.
