In this video from Intown Bicycles, demonstrates how to easily remove and to reinstall a rear bicycle wheel from a bicycle equipped with a quick release axle. There are three different common types of bicycle braking systems, and you will learn first how to disengage each of them, so that the wheel will drop out easily. Also, you will be shown how to operate the quick release system, and remove the wheel. Once you've completed this step, you are shown how to reinstall the wheel, engage the br...
This video shows how to use a special tool to redact or remove sensitive information from Adobe Acrobat 9. This includes hidden metadata, file attachments, comments, hidden text and layer elements within a PDF file. You can also set it up when you're emailing. The Examine Document function highlights information that you may want to remove. You can then select the different types of data and choose which things you want to remove.
Check out this instructional math video that demonstrates how to calculate mathematical functions and graphs. In this 9th lesson, learn how to solve on SAT Algebra problems using the Official SAT Study Guide (as always). Here are the math problems and their page numbers that this video covers:
What does f(x) mean? What does g(4) mean? We explore this and more in this 3-part series, "Understanding Math Functions."
Whether you're interested in learning Microsoft Excel from the bottom up or just looking to pick up a few tips and tricks, you've come to the right place. In this tutorial from everyone's favorite digital spreadsheet guru, ExcelIsFun, the 31st installment in his "Highline Excel Class" series of free video Excel lessons, you'll learn how to build frequency tables and simple histogram charts in Microsoft Excel. Specifically, this video addresses the following subjects:
This test can be used to determine whether the given graph is a function or not.
This tutorial aimed at someone new to Microsoft Excel shows you how to navigate the basic functions of a spreadsheet. It goes over formulas, functions, formula inputs and cell references, all of which you'll need to master in order to use Excel effectively.
New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 664th installment in their series of digital spreadsheet magic tricks, you'll learn how to make a calculation on a column of values that contain subtotals that you do not want to include in the calculations. The AGGREGATE function will ignore nested SUBTOTAL and AGGREGATE functions when making calculations.
New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 669th installment in their series of digital spreadsheet magic tricks, you'll learn how to use the AGGREGATE function in Microsoft Excel 2010 and later. This new function is better than SUBTOTAL function because 1) the options argument set to 18 will calculate Percentile and 2) AGGREGATE can handle arrays. See how th...
From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to unpack and solve word problems that require you to apply quadratic functions in algebra.
From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to find answers to quadratic function problems in intermediate algebra by graphing.
Need a little help figuring out how to find the inverse of a function in algebra? Watch this free video lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this free math tutorial, you'll learn how to calculate the inverse of a given algebraic fun...
New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 607th installment in their series of digital spreadsheet magic tricks, you'll learn how to match three lists using 2 VLOOKUP functions and the AND function.
Looking for a primer on how to create and work with array formulas in Microsoft Office Excel? You've come to the right place. In this free video tutorial from everyone's favorite MS Excel guru, YouTube's ExcelIsFun, the 12th installment in his series of Excel array formula series, you'll learn how to use the array function MMULT to multiply multiple matrices in matrix algebra. (NB: This is an array function that requires the Ctrl + Shift + Enter trick.)
New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 239th installment in their series of digital spreadsheet magic tricks, you'll learn how to create a chart for a linear function of X in Excel as well as how to use a text formula to display a function of X.
First of all, Merry Christmas and Happy New Year to all Null-Byters that learn and teach in this wonderful site. In this article we will explore the basics of the meterpreter's IRB (Interactive Ruby Shell).
Hey readers! This tutorial will be the entry point for the introduction of buffer overflows. Something like requesting user input is a very common place for vulnerabilities to pop up and we will definitely have fun while trying to make programs crash. But for now, let's start with how we can get input from a user.
Welcome back! In the last iteration of how to train your python, we covered error detection and handling. Today we'll be diverging from this and discussing functions. More specifically, we'll be creating our own functions. First we'll need to understand exactly what a function is, then we'll get on to making our own! So, let's get started!
Functions allow you to repeat particular actions without having re-code them for every instance. This tutorial shows you how to set up and use your own functions when you're writing a program using Python. Make sure all your functions are well defined before you start using them!
In this tutorial, we learn how to determine if you have a function. You will start off with two functions and their points. The 'x' values make up the domain of the function and the 'y' values make up the range. The input values are the domain and the output are the range. If you're checking to see if you have a function, you will need one 'y' for every 'x'. This means that each value has another one that goes with it. Each of the points need to have one partner with them, no more and no less...
Whether you're interested in learning Microsoft Excel from the bottom up or just looking to pick up a few tips and tricks, you've come to the right place. In this tutorial from everyone's favorite digital spreadsheet guru, ExcelIsFun, the 30th installment in his "Highline Excel Class" series of free video Excel lessons, you'll learn how to use the SUMIF function to add with one criteria, the RANK function to rank highest values to lowest values (one to five) and the IF function to assign a bo...
This video deals with solving quadratic functions. It does not involve the use of the quadratic equation; rather, only factored equations are used. The speaker starts out with a factored quadratic equation. The speaker goes on to do the mathematical steps necessary to find both the x and y intercepts of the quadratic function at hand. The author then continues on with the example to find the function's minimum. Next all of the points that have been solved for are plotted and the function is s...
JustMathTutoring This video shows the procedure of finding derivatives using the Chain Rule. The Chain Rule states that the derivative of a composition of functions is the derivative of the outside function evaluated at the inside multiplied by the derivative of the inside. This can be stated as if h(x) = f[g(x)] then h'(x)=f'[g(x)]g'(x). This is explained by two examples. In the first example we find the derivative of the sine of square of 'x'. We take the derivative of sine at square of 'x'...
This video tutorial is an introduction to some of the basic functions of batch files. Part 1 of 2 - How to Use batch files for various functions.
Watch this video to learn how to use void functions with C++. The video also covers the use of more than one return statement, immediate return, and variable scope/visibility.
Watch this video to learn how to use function definitions in C++. The topics of declaration order and calling/returning are also covered.
The BlackBerry Bold is a nifty new PDA, with a lot of hidden functionality. This tutorial shows you how you can use keyboard shortcuts to navigate, in addition to using applications, managing your contacts and customizing the appearance of your screen.
New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 616th installment in their series of digital spreadsheet magic tricks, you'll learn how to use the LARGE and SMALL functions to retrieve the 1st, 2nd, and 3rd largest values from a list. You'll also see how to do each of the following:
Learn how to use trigonometric functions to calculate the sides of a right triangle. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to ...
Whether you're interested in learning Microsoft Excel from the bottom up or just looking to pick up a few tips and tricks, you've come to the right place. In this tutorial from everyone's favorite digital spreadsheet guru, ExcelIsFun, the 36th installment in his "Highline Excel Class" series of free video Excel lessons, you'll learn most everything there is to know about working with array formulas in Microsoft Excel.
Whether you're interested in learning Microsoft Excel from the bottom up or just looking to pick up a few tips and tricks, you've come to the right place. In this tutorial from everyone's favorite digital spreadsheet guru, ExcelIsFun, the 39th installment in his "Highline Excel Class" series of free video Excel lessons, you'll learn how if an array or range is put into a function argument that is expecting a single value, the function becomes an array and delivers an array of values instead o...
This video shows the method to use differential equations to represent growth. Consider the function y=multiple of C & e raised to kx or Ce^(kx). Differentiating it with respect to x, we get dy/dx=kCe^(kx) or ky. So, the solution of the differential equation dy/dx=ky is Ce^(kx). There are two possibilities in the function y=e^(kx). It can be exponentially growth or decay function. This depends on the value of k. If k is greater than 0 or k>0, we get an exponential growth function. On the othe...
New to Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this Excel tutorial from ExcelIsFun, the 237th installment in their series of digital spreadsheet magic tricks, you'll learn how to
New to Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this Excel tutorial from ExcelIsFun, the 234th installment in their series of digital spreadsheet magic tricks, you'll learn how to convert between degrees and radians in Excel with trigonometric functions and formulas. Rad!
New to Excel? Looking for a tip? How about a tip so mind-blowingly advanced as to qualify as a magic trick? You're in luck. In this Excel tutorial from ExcelIsFun, the 315th installment in their series of digital spreadsheet magic tricks, you'll learn how (and when) to use the SUMIF & SUMPRODUCT functions.
This video will show you how I changed my NAT Type from type 3 to type 2. Part 1 of 3 - How to Change your PS3 NAT Type 3 to NAT Type 2.
If you're interested in learning how all of the defensive moves and attributes function in Fight Night Champion, take a look at this video that provides information the defensive functions of the game. If you're enjoying it on the Xbox 360, you'll be able to learn what buttons allow you to block and play defensively.
The Canon 60D is a very popular, powerful, and cheap camera for those looking to get into high-end digital photography. If you've got one and need some help on using it's many functions, check out this video for a tutorial on the many buttons and tools in your camera.
Do you want to be able to play games for free on your XBox 360? If you have some time and patience, hacking the console is probably the next step for you, and the first step in that is flashing your disc drive. This will delete it's native firmware, which does not recognize burned discs, allowing you to load your own custom firmware that does. This video series will teach you everything you need to know to flash each of the major types of disc drives used in the XBox 360, and have you well on...
Learn how to make time-based calculations with the TODAY and NOW functions in MS Excel 2010. Whether you're new to Microsoft's popular digital spreadsheet application or a seasoned business professional just looking to better acquaint yourself with the Excel 2010 workflow, you're sure to be well served by this video tutorial. For more information, including step-by-step instructions, take a look.
