# Integrals

### How To : Evaluate a line integral along a straight line segment

This video tutorial is in the Education category which will show you how to evaluate a line integral along a straight line segment using the definition of the line integral. This video evaluates a line integral along a straight line segment using a parametric representation of ...more

### How To : Solve a line integral over a closed path

Line integrals will no longer be the feared terrorist of the math world thanks to this helpful guide from the Khan Academy. Marvel at the ease in which the integral is taken over a closed path and solved definitively. Then take out a sheet of paper and see if you can do the sa ...more

### How To : Use Maclaurin/Taylor series to find accurate integrals

See how to approximate a definite integral to a desired accuracy using Maclaurin/Taylor series and the alternating series estimation theorem with this free video calculus lesson. See how it's done with this free video algebra lesson. From Ramanujan to calculus co-creator Gottf ...more

### How To : Use Green's Theorem to solve a line integral

This three part video walks you through using Green's theorem to solve a line integral. This excellent video shows you a clean blackboard, with the instructors voice showing exactly what to do. Don't fret, any question you may have, will be answered. Watching this video will m ...more

### How To : Solve complex indefinite integrals in calculus

In this video the math teacher explains the meaning of the indefinite integral formula in calculus by stating it in terms of antiderivatives. He then shows in general terms how this indefinite integral formula has a related derivative formula, i.e. if the derivative of F(x) is ...more

### How To : Find indefinite integrals or antiderivatives in calc

Need help figuring out how to calculate indefinite integrals or antiderivatives in calculus? 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 easie ...more

### How To : Calculate a surface integral in calculus

Need help figuring out how to calculate surface integrals in calculus? Learn 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 ...more

### How To : Take the indefinite integral of a polynomial

Want to know how to find the indefinite integral (or anti-derivative) of a polynomial? 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 ...more

### How To : Use definite integrals to find the area of curves

Brightstorm explains how to use definite integrals to find area. There are two basic area problems: one in which the area lies between the function and the x-axis, and one where the area lies between the two functions. In the first case, if the curve lies above the x-axis for ...more

### How To : Find the area between curves with definite integrals

Need to calculate the area between two curves? 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 th ...more

### How To : Define an indefinite integral in calculus

In this video tutorial, viewers learn how to define an indefinite integral in calculus. Finding the anti-derivatives of a function is called anti-differentiation. The f(x) is the derivative of F(x), while F(x) is the anti-derivative of f(x). If F(x) is the anti-derivative of f ...more

### How To : Solve vector field integrals in calculus

This video demonstrates that, unlike line integrals of scalar fields, line integrals over vector fields are path direction dependent. See how to solve vector-field integrals with this free video calculus lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of ...more

### How To : Solve closed line integrals on conservative fields

This three part video walks you through the steps of solving closed line integrals on conservative fields. This excellent video shows you a clean blackboard, with the instructors voice showing exactly what to do. Don't fret, any question you may have, will be answered. Watchin ...more

### How To : Solve scalar field integrals in calculus

This video demonstrates that the line integral of a scalar field is independent of path direction. Learn how to solve scalar-field integrals with this free video calculus lesson. Looking for a primer on how to solve matrix problems using a TI-89 graphing calculator? See how it ...more

### How To : Play compound intervals and invert them on the piano

In this piano music theory lesson you'll go over something of a more advanced piece of music theory: compound intervals. Compound intervals is basically jargon for the distance in pitches bewteen two notes. Learn how to distinguish compound intervals as well as how to invert ...more

### How To : Boot Your Galaxy S8 or S8+ into Recovery Mode or Download Mode

Samsung devices have two pre-boot menus that every Galaxy owner should know about: recovery mode and download mode. The recovery screen allows users to wipe cache files or perform a factory reset, which can help save the phone from a soft brick. Download mode, on the other han ...more

### How To : Secretly Monitor Text Messages on Your Galaxy S4 or Other Android Device

Children grow up way too fast these days, and handing them a mini-computer in the form of a smartphone only contributes to that. While access to the internet puts a world on knowledge at their fingertips, it also paves way for using any number of social networks available. Wh ...more

### How To : Make a sneaky, snake spy camera that records video

Snake cams have become the epitome of high-tech gadgets on television and in movies. In 24, Jack Bauer is always using a snake camera to check for terrorists on the other side of the door. The video game Splinter Cell has made the snake cam an integral part to Sam Fisher's ars ...more

### Split Screen Multitasking : How to Run 2 Apps in Separate Windows on Your Nexus 7 Simultaneously

Efficiency is one integral attribute that I need from my Android device. I want to be able to multitask like a maniac and do things on the fly. While multitasking itself is nothing new, actually being able to watch Netflix while scrolling through IMDB at the same damn time was ...more

### How To : Get Back Lock Screen Customization in Android Lollipop

Beginning with KitKat, I've been used to customizing every aspect of my Android phone, but with the release of Lollipop, there is quite a bit of catching up that developers need to do. Most customization features, like quick settings rearrangement and theme support have alread ...more

### How To : Use Split View Mode in Mac OS X 10.11 El Capitan

Catching up with Windows 8, Apple has finally included a way in Mac OS X to use two apps side by side in full screen view. In the 10.11 El Capitan update, it's called Split View, and it works fairly well for the most part. It's not quite as intuitive as it should be, but easy ...more

### How To : Avoid Caffeine Crashes, No Matter What Kind of Coffee Drinker You Are

Fifty-four percent of Americans 18 and older drink coffee every day, and why not? With 100 milligrams of caffeine per six ounces of drip coffee, it's just the morning beverage to wake you up and kickstart your day. You can feel the caffeine surge through your body like the Hol ...more

### How To : Sew knitted pieces together using a whip stitch and other stitches

Tie loose ends together - in the literal and original sense sense of the phrase - by sewing together the ends and/or hems of your knitting projects like a pro. Whether you're fusing together two pieces of wool-knitted cloth to form the back of a beautiful winter sweater or jus ...more

### How To : Change the Color, Position, Shape, & Size of Badge Alert Icons in iOS 7 (Plus, Animate Them!)

Once you jailbreak, there are hundreds of options available for you to fully customize your boring stock iPhone into something more efficient and fun. We've already shown you a bunch, like how to beautify app icons and change battery icons, but now it's time for a badge alert ...more

### How To : Get the HTC One M8's All New BlinkFeed Launcher on Your Nexus 5

HTC's recent release of a new flagship phone brought tons of fanfare along with it. Dubbed The All New HTC One, the M8 edition of the popular One series phone also marked an update to the HTC Sense UI. Manufacturer skins like Sense can be a bit of a polarizing subject, especia ...more

### How To : Yes, You Should Add Water to Your Whisky & Here's Why

Before I get ostracized by all of you whisky lovers who live and die by whisky served neat, let me say my piece. In the past, I haven't been much of a whisky fan—I would shoot it back or add it to Coke or ginger ale, but I certainly wouldn't sip on it and enjoy it. In fact, t ...more

### How To : Make a Cheap & Easy Prop Skull

Skulls. What spooky Halloween décor or staging of Hamlet is complete without a skull or two popping up? For ghoulish special effect and/or setting a dramatic scene, skulls are absolutely integral. Well, with some artistry, hardware supplies, and a good dose of patience, you ca ...more

### How To : Get Floating Bubble Notifications for Any Android App

Notifications are an integral part of our day-to-day smartphone usage. They allow us to easily see and act upon all of the latest information that comes our way. Well, most of the time, that is. When using a full-screen app or game, Android's notification bar is hidden, and a ...more

### How To : The One Thing You're Not Doing for Perfect Steaks & Roasts

When I first started cooking, there were a few steps I always skipped in recipes. I never added zest to anything because it seemed like too much trouble, I rarely separated wet and dry ingredients in baking recipes because I was lazy, and I never let meat rest after it was don ...more

### How To : Replace your vehicle's power steering pump

Your vehicle's power steering pump is integral to your car functioning at all. That's because the power steering pump is what provides the hydraulic power for steering. Without it, your car would pretty much go nowhere. Inside the pump, retractable vanes spin, pulling hydrauli ...more

### How To : Find the average value of a function over an interval

When you have to find the average of two or five numbers then you have to add all the numbers and then divide then by two or five respectively. However in the case of the function you have infinite many values over any interval. But it is not possible to add all and then divid ...more

### News : 8 Tips and Tricks Every Steampunk Writer Should Know

While I am a writer with a degree in Creative Writing, I haven't published any Steampunk fiction. However, as a panelist and track director, I've been on panels with many well-known Steampunk writers and have gleaned insight from the things they've said. I've compiled some of ...more

### News : Follow These 20 YouTube Channels for the Best Videos on the Web

YouTube's massive user base comprises almost one third of all people on the internet, and collectively, users spend well over 100 million hours on the site watching billions of videos each day. Add it all up, and this means that YouTube is viewed by more people than any U.S. c ...more

### How To : Replace the blade of a utility knife

This is an instructional video featuring Doug Prime, founder of the Future Engineers Center at the University of Massachusetts Lowell. This is an instructional on utility knives that are used to cut foam board and cardboard. The blade replacement is integral to this craft or h ...more

### How To : Force Google Voice Typing to Use Offline Mode (& Save Data) on Android

As smartphones become increasingly integral parts of our lives, so does data throttling. Personally, I try to save data any way that I can, so to stave off unnecessary usage, I use the GoogleOfflineVoice to limit the amount of data consumed by voice typing. With this Xposed m ...more

### How To : Change spark plugs on your automobile

Spark plugs have been and probably always will be an integral part of your car, so you should consider it an essential (read: necessary) automobile maintenance skill to know how to take out old ones and install new ones. And no, we promise you won't be lit up like a Christmas ...more

### How To : Dance with sexy booty shaking moves at the club

Let this video be as integral a part of your pre-club prep as hairstyling and putting on makeup. After all, we know that even if we're looking our sexiest in our six inch Blahniks, once we actually hit the dance floor it becomes Awkward Central. Some gals find their groove nat ...more

### How To : Fix an Inconsistent Orientation Sensor on Your Samsung Galaxy S3

The sensors in your mobile device are integral for gaming (try to beat my Temple Run 2 score), as well as many of the basic Galaxy S3 features like Smart Stay and other fancy additions. But sometimes those sensors can become overly sensitive or just downright unusable. Unless ...more

### How To : Install floating glass wall shelving in your home

Glass shelves add a elegant beauty to your home, but imagine how much more elegant and sleek they would look if they were simply floating against the wall. Floating glass shelves are the innovative way to create stylish wall arrangements. These video instructions will show yo ...more

### How To : Create a Redstone Sorting Machine in Minecraft

Welcome to Minecraft World! Check out our advanced tutorials and come play on our free server. A redstone sorting machine can not only cure a cluttered unmanageable Minecraft home, but make for an integral part of an efficient work space. With the redstone sorting machine, yo ...more

### Preparing Builds, Part 1 : Terraforming

Throughout this integral guide, I'm going to aid you along the path to bigger and better builds. Often times, people just jump in and build, but we mustn't hurry things if we want our builds to be all the more satisfying when they are finished. Building the actual builings sho ...more

### News : Friday Indie Game Review Roundup: An Amnesiac Retrospective

Three years ago, Double Fine productions held an in-house event called the Amnesia Fortnight. The company was split into four teams, each of which set out to spend two weeks developing an idea for a small game and present it to the other groups at the end of the duration. All ...more

### Play GIRP : All the Finger Strain of Climbing without the Risk of Death

Great controls are the most important and difficult part of game design. Games with vector graphics and non-existent stories are classics because their creators managed to create a system where using buttons to control a shape on a screen was intuitive and fun. This is the tra ...more

### How To : Artificially inseminate a cow with Johnny Knoxville

With the noble pursuit of science in mind, Johnny Knoxville learns how to artificially inseminate a cow firsthand. This is an integral part of cattle raising and dairy farming using bull sperm.

### How To : Get Real-Time Info on Friends Around You (Including Exact Location) Using Your iPhone

Imagine that Tinder fornicated with Facebook and had a baby. The product of that union would be the hideous, yet overwhelmingly interesting SocialRadar, an app dedicated to stalkers and stalkees. Video: . Only other SocialRadar accounts can view your profile, but the app relie ...more

### How To : Practice crossovers in speed inline skating

This is a collected tutorial video from the "Ottawa's Eddy Matzger Weekend" event. Featuring Barry Publow and Eddy Matzger, learn how to properly crossover in competitive speed inline skating. The crossover is integral to getting fluidity in the motion and to make smooth turns ...more

### How To : Dance with glow chucks or glowsticks for beginners

Here is a video of basic glowchuck movements. This is a liquid dance prop dance instructional. Using glowsticks in liquid dance is integral especially for electronic parties and rave nights. It adds a textural element to dancing in crowds.

### How To : 10 Common Food Myths Debunked

Common knowledge is a funny thing: it represents a majority's opinion on a particular subject and somehow makes that opinion fact. If that 'fact' goes unopposed and unchallenged, then it is passed on and preserved from one generation to the next—regardless of whether it is tru ...more

### How To : Make crochet Mary Jane slippers for a baby girl

Mary Janes are the classic American girl shoe, their style simplistic yet subtly feminine, polished and clean. Perfect for parties but also with punk rock potential when dressed down, these shoes are integral pieces in a girl's wardrobe. Start your baby girl on the road to be ...more

### How To : Derive the area of a circle

This video is about deriving the area of a circle of radius 'r' using polar co-ordinate. First, we draw a circle and its radius 'r'. Then draw another radius close to it, so that it forms a small triangle-like figure. To find the area of the complete circle, divide the circle ...more

### News : Feel your boobies

We encourage everyone (especially breast owners) to please watch. Intently. The UK's Channel 4's fantastic program Embarrassing Bodies is serving up lifesaving health advice. This segment does not sacrifice any details (nipple shots, etc.) to accommodate conventional prudes or ...more

### How To : Add Functionality & Declutter the Android Lock Screen on Your Nexus 5

The Android lock screen interface is an integral part of our everyday use. For those of us who use lock screen security, it functions as a barrier between the sensitive data contained within our smartphones and potential outside access. Even if you don't use a pattern or PIN t ...more

### How To : Make a replica of the Spartan laser from Halo 3

The lasers from Halo might not be quite as famous as the assault rifles form the games, but they are still a very cool-looking and integral part of it. This video will show you how to make your own replica of the Spartan laser from Halo out of a toy gun called the Belt Blaster ...more

### How To : Apply glue to latex for creating latex fashions

There are different techniques to apply the glue on the latex sheeting, none of them is right or wrong. All that matters is what works best for you. This latex tip is helpful for making fetish clothing or latex fashion pieces. Latex clothing is integral to fetish clothing and ...more

### How To : Cook Polenta in 15 Minutes Instead of 40

I became a big fan of polenta while studying Italian cooking. Previously, it never occurred to me that ground corn could create a dish that could rival the best pastas or potatoes. Those rich, golden bowls of cornmeal, cooked until tender and flavored with good olive oil, butt ...more

### News : Curious About Steampunk? Check Out This Required Reading and Viewing List

Steampunk is a tremendously interesting phenomenon because of its reliance on science fiction, and fiction in general. Steampunk can arguably be broken down into two categories: the fiction, and the aesthetic. Sometimes these categories cross over, but they're often more disti ...more

### Ingredients 101 : Heirloom vs. Hybrid Tomatoes… Ready, Fight!

If you've been to a farmer's market during tomato season, chances are you know that heirloom tomatoes are pricier (and funnier-looking) than their hybrid counterparts. Heirloom tomatoes, bursting at the seams.. These eccentric tomatoes have become a sought-after alternative to ...more

### How To : Use a square lashing

Square lashing is a knot-making technique that has been made famous by the Boy Scouts of America's massive pioneering projects, and is really integral to any structure made out of poles like the one you see in the thumbnail. This video will teach you how to use square lashing ...more

### How To : Create a successful sales pitch

Being in sales is hard work. After all, the only thing more painful than trying to sell a hand cream or knife set to a stubborn client is perhaps pulling out teeth - without novacaine. And God knows how many times we've hung up on telemarketers because, well, they're a little ...more

### How To : Use bobby pins to paint poka dots on your nails

Bobby pins have been integral tools in a girl's makeup case since the 1920s, when bobby pins were used to secore the fashionable hair bobs of the Jazz Age. They've also recently been used by young boys and hackers to pick open locks. And now you can add one more fun use to the ...more

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