Looking for a primer on how to find and sketch the domain of a function z = f(x, y) in calculus? Learn how with this free video calc 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).
Need help in determining the amplitude and period of sine and cosine functions? This free video lesson will show you how. 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...
Learn how to define the three fundamental trigonometric functions using a unit circle. 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 t...
New to Microsoft Excel 2010? Looking for a few good tips and tricks? Look no further. In this free video tutorial from everyone's favorite MS Excel guru, YouTube's ExcelIsFun, the 7th installment in his series of Excel 2010 video tutorials, you'll learn how to use Excel's new CONFIDENCE.T function to calculate the margin of error for a T distribution confidence interval.
New to Microsoft Excel 2010? Looking for a few good tips and tricks? Look no further. In this free video tutorial from everyone's favorite MS Excel guru, YouTube's ExcelIsFun, the 6th installment in his series of Excel 2010 video tutorials, you'll learn how to use the new NORM.DIST and NORM.S.DIST normal distribution functions. They have new screen tips to help you select the correct argument.
New to Microsoft Excel 2010? Looking for a few good tips and tricks? Look no further. In this free video tutorial from everyone's favorite MS Excel guru, YouTube's ExcelIsFun, the 3rd installment in his series of Excel 2010 video tutorials, you'll learn how to use Excel's new percentile function, PERCENTILE.EXC.
Are you looking for a way to make your Microsoft Excel formulas more efficient? If so, you're in the right place. With this free video lesson from everyone's favorite digital spreadsheet guru, YouTube's ExcelsFun, the very first installment in his "Excel Formula Efficiency" series, you'll learn about the basics of Excel's SUMPRODUCT function — why some people use double negative and why other use times one.
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 33rd installment in his "Excel Statistics" series of free video lessons, you'll learn how to use the AVEARGE, MEDIAN, MODE, PERCENTILE, QUARTILE and PERCENTILERANK functions to measure location.
video tutorial from ExcelIsFun, the 64th installment of his "YouTubers Love Excel" or YTLE series of free video MS Excel lessons, you'll learn how to Excel's D (i.e., database) functions such as DSUM, DAVERAGE, and DMAX.
Love Microsoft Excel? This clip contains a tip that just might induce you to. With this free video tutorial from ExcelIsFun, the 85th installment of his "YouTubers Love Excel" or YTLE series of free video MS Excel lessons, you'll learn how to isolate unique records with the OR function.
Love Microsoft Excel? This clip contains a tip that just might induce you to. With this free video tutorial from ExcelIsFun, the 74th installment of his "YouTubers Love Excel" or YTLE series of free video MS Excel lessons, you'll learn how to fix bad data with the CLEAN & TRIM functions.
Love Microsoft Excel? This clip contains a tip that just might induce you to. With this free video tutorial from ExcelIsFun, the 86th installment of his "YouTubers Love Excel" or YTLE series of free video MS Excel lessons, you'll learn how to create a TRUE/FALSE formula to change the function of pivot table as well as how to filter one.
Love Microsoft Excel? This clip contains a tip that just might induce you to. With this free video tutorial from ExcelIsFun, the 51st installment of his "YouTubers Love Excel" or YTLE series of free video MS Excel lessons, you'll learn how to use a VLOOKUP function inside a Text Formula to add a variable word (e.g., Annual, Semi-Annual, Quarterly, Monthly, or Weekly).
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 317th installment in their series of digital spreadsheet magic tricks, you'll learn how to extract data (specifically, a substring from string) using the MID Function.
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 217th installment in their series of digital spreadsheet magic tricks, you'll learn how to create a simple If function formula that uses a logical test that involves text (instead of a number).
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 151st installment in their series of digital spreadsheet magic tricks, you'll learn how to calculate the days, months or years between two dates using Excel's undocumented DATEDIF function.
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 101st installment in their series of digital spreadsheet magic tricks, you'll learn how to use IS functions (ISBLANK, ISERR, ISERROR, ISLOGICAL, ISNA, ISNONTEXT, ISNUMBER, ISREF &ISTEXT).
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 9th installment in their series of digital spreadsheet magic tricks, you'll learn how to use Excel's EXACT function to check to see whether two text strings are equivalent and whether or not they have the same case.
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 203rd installment in their series of digital spreadsheet magic tricks, you'll learn how to use the SUMIF function to sum with specific criteria.
After you launch Outlook 2010 in your computer, you will see the Ribbon strip immediately in the main window. The button for writing a new e-mail is separated from a button for creating new items in the calendar, contact list or task manager. An independent Quick Steps section offers functions allowing you to move a message into different folders, to save it into a calendar as a meeting reminder, to quickly forward it to a chosen person or to more people and to forward it with a FYI note. If ...
There is a new function in MS Excel 2010 called ‘Sparkline’ which helps you quickly find trends associated with a set of data. To create Sparkline, you can go to ‘Insert’ tab and then select ‘Sparkline’ section and then select the graph type. After you enter the data range and location range, the Sparkline will show up indicating the trend based on the data range you identified earlier. You can change the types and styles of your Sparkline easily. As the video demonstrates, whenever you use E...
Designing a data mapping project in MapForce? The output functions in MapForce let you preview textual or XML output, save it to disk, or look at SQL statements for database output before committing them to the database server. Learn how in this tutorial.
Want to know everything about your new Motorola Droid X from Verizon Wireless? This three-part video review goes through all the features of the Droid X, showing you how to use everything on the Android smartphone. It's got a 4.3-inch touchscreen and HD video capability, something a mobile phone has never had.
In this educational video the instructor shows how to find the slant asymptotes of rational functions. Slant or oblique asymptotes occur when the degree of the numerator is exactly one greater than the degree of the denominator of the rational function. The way to find the equation of the slant asymptote from the function is through long division. In this long division you divide the numerator with the denominator by following the long division method as shown in this video. Before dividing i...
In this clip, you'll learn how to use the shell function to use the shell function to open folders. Whether you're new to Microsoft's popular event-driven program language & IDE or a seasoned developer merely looking to improve your chops, you're sure to find benefit in this free Visual Basic programming lesson. For more information, including a complete demonstration and detailed, step-by-step instructions, take a look.
There are many ways to attack a Wi-Fi network. The type of encryption, manufacturer settings, and the number of clients connected all dictate how easy a target is to attack and what method would work best. Wifite2 is a powerful tool that automates Wi-Fi hacking, allowing you to select targets in range and let the script choose the best strategy for each network.
As penetration testers, we sometimes need to securely store customer data for prolonged periods. Bruteforce-resistant, vault-like containers can be created with just a few commands to protect ourselves from physical attacks and unintended data disclosures.
Gmail conversations, Facebook private messages, and personal photos can all be viewed by a hacker who has backdoor access to a target's Mac. By livestreaming the desktop or exfiltrating screenshots, this information can be used for blackmail and targeted social engineering attacks to further compromise the mark.
While the USB Rubber Ducky is well known by hackers as a tool for quick in-person keystroke injection attacks, one of the original uses for it was automation. In this guide, I'll be going the latter, explaining how we can use it to automate Wi-Fi handshake harvesting on the Raspberry Pi without using a screen or any other input.
General Motors acquired Cruise Automation in March 2016 for a reported $1 billion (well, at least $581 million). GM President Dan Ammann made a point of being in the press release photograph with Cruise founders Kyle Vogt and Daniel Kan (see photo below). On January 19, 2017, Vogt posted on Twitter: "Took GM Pres. Dan Ammann for a ride in a Cruise AV."
One of the big hurdles when equipping vehicles with sensors for autonomous driving is the cost. For example, the Light Detection and Ranging (LiDAR) sensors that power many versions of self-driving car technology are pricey, currently ranging from around several thousand dollars up to $85,000 per sensor—and vehicles often need multiple sensors to see enough of what is going on around them to drive safely.
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.
Camera mapper is a function in Adobe After Effects that lets you take a static, 2-D image and turn into a dynamic 3-D shot. Create a zoom feature and make it look like you have a camera panning through the picture!
In this video, we learn how to evaluate functions. When evaluating functions, you substitute in the variable to the input given. Once you do this, you will rewrite the equation filing in the appropriate spots with the numbers that you are given. After this, you will evaluate the equation with the proper steps in math. Once you have figured out the problem, you can do this in reverse to make sure you have the correct answer. This is a very easy process and it doesn't take that long. Just make ...
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 725th installment in their series of digital spreadsheet magic tricks, you'll learn how to calculate quartiles with the MATCH and QUARTILE function.
One of Microsoft Excel's capabilities is to allow you to graph Normal Distribution, or the probability density function, for your busines. This is a quick and easy tracking feature you can learn in just a few minutes.
With these two helpful tutorials, all of you StarCraft 2 players will get a little help developing your own leader boards with the StarCraft 2 Editor. This one is simply based on kills, which means it's a lot easier to learn. So, watch and follow along and start designing.
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 568th installment in their series of digital spreadsheet magic tricks, you'll learn how to calculate the five largest values for each a data set using the new AGGREGATE function.
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 toe AGGREGATE function cannot handle 3-D cell references.
In this clip from Sean Devlin's "Full Disclojure" series of Clojure video tutorials, you'll see how to measure and improve the performance of a function. One of the most obvious perks of using the Clojure is the user community organized around it, which make learning the language a pleasure (and a simple one at that). For more information, including detailed, step-by-step instructions, take a look.
