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How To: Generate random numbers not divisible by 3 in Excel

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 261st installment in their series of digital spreadsheet magic tricks, you'll learn how to generate random numbers within a certain range and with certain supplementary criteria (e.g., values that are not divisible by three) via the use of large array formulas.

How To: Massage data in Houdini 10

Get a crash course on HScript Expressions, Variables, and Attributes in Houdini 10. If you don't even know what this means, then you probably need to check this video tutorial series out. Understanding how to massage data in Houdini is key to giving yourself the creative edge and allowing you to unleash mind-blowing visual effects. This 18-part video series covers a variety of simple yet essential weapons in your arsenal including Global, Standard and Custom Variables to Math and String Modif...

How To: Solve angle problems in geometry

Need some help figuring out how to work with angles in geometry? Look no further. 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 sol...

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 276th installment in their series of digital spreadsheet magic tricks, you'll learn how to download and install the MoreFunc supplementary function add-in.

How To: Understand angle relationships

In this tutorial, we learn how to understand angle relationships. Start out by drawing an angle out and looking at the different parts of it. From here, you will start to find where the different angles are. Linear pairs equal 180 degrees and are on a straight line. Once you learn this, you can write them out on the paper. Supplementary angles equal 180 degrees as well. Two angles that add up to 90 degrees are complimentary angles. Once you learn the relationships between angles, you can bett...

How To: Understand the rule of vertically opposite angles

In this video we learn how to understand the Rule of Vertically Opposite Angles. This says that when two straight lines cross it produces vertically crossed lines that must have congruent angles. Because the lines are straight this has to happen. Remembering the rule "supplementary" you will be able to calculate the angle of A and B in the equation. Prove what each of the angles are using the different rules and then move onto the other two angles. Angle C can be figured out by knowing that i...

How To: Understand parallelograms

This video helps us understand parallelograms and its properties. The video starts with the description of the basic properties of a parallelogram. The parallelogram is a four sided shape which has the sum of all four interior angles equal to 360 degrees. The opposite sides of a parallelogram are equal and parallel. Then the video talks about the angles in the parallelogram. The parallelogram has a lot of symmetry. This makes the opposite angles of a parallelogram equal. The same side angles ...

How To: Tone with dumbbell pushup rows

Pushups are a great workout at any level of bodybuilding. However, if you feel that you're ready for something more advanced, dumbbell rows are a good option for the next step in your advancement. They offer a new challenge and a different way to work out the same muscles you do with pushups.

How To: Stop bloating after eating raw foods

Most of us aim at maintaining a healthy lifestyle and many of us incorporate raw food in our daily diet, to keep the calories under check. For some, this may result in a bloated and uneasy feeling. The reason for this could be many. However, primarily this arises due to the fact that our bodies are not habituated to handling so much fiber! This video shows how to deal with the problem, for those who experience this kind of bloated feeling. The first step necessary is to gently steam the raw v...

How To: Classify a Triangle as an Isosceles Triangle.

Video: . What is an isosceles trapezoid. The video goes over the properties that are unique to an isosceles trapezoid.

Compound Butter: An Easy Flavor Hack

Butter is one of the most versatile ingredients in the world: its variety of uses range from brightening a morning piece of toast to finishing a beautiful rib-eye steak with decadent flair.

How To: 100+ Secret Dialer Codes for Your iPhone

There's a lot more to your iPhone's dialer screen than just entering phone numbers and hitting the green call button. It's not very obvious, but there are secret codes that you can enter on the dialer to find out information about your device, help troubleshoot issues, and mask outgoing calls, to name just a few things.

Dissecting Nmap: Part 1

Welcome aboard my inquisitive comrades. I am starting a new series that nobody expected coming. It may not seem very exciting at first, but await the last few parts as many startling discoveries will be made. This is a series which I plan to continue after the completion of Nmap, unless you have major objections.

How To: Obtain Valuable Data from Images Using Exif Extractors

Metadata contained in images and other files can give away a lot more information than the average user might think. By tricking a target into sending a photo containing GPS coordinates and additional information, a hacker can learn where a mark lives or works simply by extracting the Exif data hidden inside the image file.

How To: Drop Everything! Here's How to Secure Your Data After Heartbleed: The Worst Web Security Flaw Ever

This time it's serious. Really. The largest web security vulnerability of all time went public on Monday, April 7th, 2014, resulting in widespread panic throughout the Internet as system administrators scrambled to secure their websites from the OpenSSL bug known as Heartbleed.

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