Cost Function Search Results

How To: Still Using Notes? Here Are 3 Better Word Processing Apps for Writing on Your iPhone

As someone who writes an extreme amount, it's a necessity for me to have an organized and multifunctional text editor. The stock iPhone Notes application is useful to an extent, but it sorely lacks in features and design. Writing and text editing applications are nothing new to the iPhone, but many of them are overloaded on features, making it even harder to keep organized. Here are just a few alternatives that I find helpful in my day-to-day writing.

How To: Build a Rustic Timber Table

These three videos will show you how to build a rustic, distressed kitchen table. I'll be walking you through the process of selecting some recycled timber from a junk pile, and with a little care and some simple joinery techniques, transform that waste timber into a distressed timber kitchen or dining table. In fact, you could use the table for whatever you wanted really.

How To: Who's Unfollowing Your Twitter Account? Find Out with These Tracker Apps (And Get Revenge!)

Feelings can get hurt on Twitter as fast as an update. Everything is fine and dandy because two people are mutually following each other, then out of nowhere, one person has unfollowed the other out for seemingly no reason. Twitter doesn't notify users when someone has unfollowed them, so there are millions of people out there who get used for their follow! Well, now you can find out who unfollows you on Twitter with these mobile apps.

How To: Don't Have an Apple TV? Use AirPlay to Stream Content to Your Mac Instead

AirPlay is probably one of the most underutilized features in Apple products. It allows users to wirelessly stream photos, music, or video directly from their iPad, iPhone, iPod touch or Mac to their Apple TV or AirPlay-supported speakers. The Apple support page has a complete list of all the supported and needed devices. Mirroring is also available, but only for the iPhone 4S, iPhone 5, and iPad 2, all of which need to be running iOS 5 or later.

How To: Build Your Own Projector Screen at Home for Less Than Fifty Bucks

A few weeks ago, we saw a simple 128 inch DIY Projector Screen that looked like a pro built it—and it only cost $200. But this one is even cheaper, and looks just as good. It's also simpler because it's painted right onto the wall. In the video below, How To Lou shows us how to make it with just some white or silverscreen paint, a few pieces of casement molding, and some black velvet for the trim.

How To: Moving Soon? This DIY Alarm Will Make Sure Your Stuff Stays Safe in the Truck Overnight

The worst part of moving into a new place is, well...moving. It's tedious, a lot of hard labor, and it can take forever, and don't even get me started on all those labels. It's also one of the only times in your life when everything you own can be stolen at once, since it's sitting in a movable container. Rather than risk losing everything, try this DIY Moving Truck Alarm System by Tim Flint that lets you know when the loading door is opened so you can catch would-be thieves red handed.

News: This 1974 Gas-Guzzling Beetle Is Now an Eco-Friendly Electric "Voltswagon"

Want an electric car without the price tag? You could always build your own, or maybe just hack your old gas guzzler into an eco-friendly electric machine... This weekend at Defcon, security consultant David Brown showed off his "Voltswagon" project, a 1974 Beetle named Shocky that he converted to electric for only $6,000. He removed the old combustion engine, radiator, and a few other unneeded parts to make it lighter. Then he loaded it with batteries front and back, ten Interstate DC-29, 12...

News: This Cardboard Bicycle Cost Only $12 to Make—And It Works!

Stop me if you've heard this one before. A man walks into a bicycle shop, hears about a canoe made of cardboard and is inspired to make an awesome, fully-functional cardboard bicycle. Sound far-fetched? Wait until you hear how his guy actually did it. Israeli entrepreneur Izhar Gafni says that the idea for his method came from Japanese origami. Folding the cardboard increases its strength by 2-3 times, making the material much more durable. Essentially, he made the basic shape for each part w...

News: Have an NFC-Enable Phone? This Hack Could Hijack It

Some of us use our smartphones for almost everything. Manufacturers know this, so they try to make their devices as convenient as possible to use, but sometimes that convenience comes with a cost to security. The very same technology that allows you to easily share music with friends and make purchases can also put you at risk. Photo by sam_churchill

How To: Use Excel data analysis subtotals

1. The following instruction describes how to generate sub totals in Microsoft Excel Sheet. 2. Take Region as a Primary column and Sales Rep as a Secondary Column. 3. First method to sort: Select a cell in Region and goto Data select A to Z. 4. Second method to sort: Select a cell in Region and Right click and select Sort A to Z 5. Then click a cell in Region and select Data->OutLine->SubTotal 6. In the SubTotal Window select 1.Each Change in: Region 2.Use function:Sum 3.Add subTotal to:Sales...

How To: Install a heat sink for a CNC router

A CNC router machine is probably the most useful tool a hobbyist can own, but the price for a CNC machine on the market is way more than the average hobbyist is willing to spend. You can build your own CNC with very basic tools, little knowledge of machinery, mechanics, or electronics, but be warned, these machines are inherently dangerous, so wear the proper protection and use common sense. At the very least, read the instructions and precautions on every tool you use.

How To: Use height change in tango

In this tutorial, we learn how to use height change in tango. This will combine many elements of tango to change height deliberately for function and style. You do not want to change your weight and height without knowing it, because it can change how you dance and make it look completely different. Pay attention to your body and how your feet are placed on the ground. If your body weight is shifted too much to one foot it can change how you are dancing and the height of your overall self. Us...

How To: Embed a fundraising widget onto your Facebook page

In this how-to video, you will learn how to embed a social or fund raising widget on to your Facebook page. Look for static fbml on the Facebook search function. Click on it and add to page. Next, press add static fbml. Now you are finished. Go to edit page and click edit on the application. Now you can embed whichever code you need to paste into your Facebook page. Do not worry about what the code does, as you do not need to know it in order for it to work. Save the changes and go back to th...

How To: Turn a used TV into an oscilloscope

Leeann of Hierchiss explains how to turn a TV into an oscilloscope. Turn the TV on and make sure it works. First, unplug the power. Take the back off the television. Cut the four picture wires that attach to the circuit board. Strip the ends of the wires. Tape the remaining wires off to prevent short circuiting. Clamp the red and yellow wires and attach to a 1/4 inch jack which feeds into a tape player. Repeat the same process for the green and blue wires. Plug in the TV to make sure the conn...

How To: Increase and improve speed, jump height, and agility

Dan Larsen from Elevate Polymeric shows us how to complete a polymeric drill. By practicing this drill frequently you can increase your ability to run faster, jump higher and improve your agility. Great for runners or any athlete! If you've never heard of polymeric exercises before they are exercises designed to produce fast and powerful movements. These fast and powerful movements can in turn improve the functions of your body's nervous system. After doing polymeric drills a few times you wi...

How To: Make an easy homemade cheesecake

In this video you'll learn how to make an easy and delicious home made cheesecake topped with some fresh kiwi slices. Easy and quick to eat for you and the entire family. This is a perfect desert to make for the next family function for everyone to enjoy. It's also to cook for those of you on a budget.

How To: Fix a frozen, locked up iPhone or iPod Touch

Look at the Main Menu on our screen. If the Icons on the screen do not respond to your commands, it means that the system is corrupted. To fix this problem, hold and press down the Power and Menu button at the same time for about 6-8 seconds or until you see a black and white Apple logo right on the middle of the screen; after the icons disappear. This means that your system is rebooting without losing any of your original data. This ensures the system functioning properly again as soon as yo...

How To: Prepare and cook a meal as a Boy Scout

As a Boy Scout, when the First Class rank is attained, a scout has learned all the basic camping and outdoors skills of a scout. He can fend for himself in the wild, lead others on a hike or campout, set up a camp site, plan and properly prepare meals, and provide first aid for most situations he may encounter. A First Class scout is prepared.

How To: Build a home-made wind generator using basic tools

Suffering from high energy costs or simply looking to live in a more environmentally sustainable fashion? In this video tutorial, you'll find instructions for building your own wind generator using simple hand tools. For more, as well as step-by-step instructions to building a your own rotary wind generator, take a look at this how-to video.

How To: Clean an oven spill quickly using salt

Like all appliances, the oven has a tendency to get dirty inside. Unfortunately, unlike most appliances, the oven is extremely difficult to clean out. Many ovens have a clean selection that will burn off all the excess items in there, but even those left over ashes can sometimes be difficult to wipe away. If your oven does not have the clean function, the method most people use is to clean it out with an oven cleaner. It will most likely consist of spraying the cleaner on all dirty parts of t...

How To: Make werewolf stilts

Here is a three part video series which explains the function and parts of constructed stilts, and how to turn them into werewolf stilts by adding fur and padding for your comfort! Make sure to check out the mask - Make a furry werewolf mask!

How To: Automatically Answer Calls Just by Putting Your iPhone Up to Your Ear

Tapping on your iPhone's display to pick up an incoming call can be annoying when your hands are wet or dirty. It might even fail to register and cause you to miss your call. If you have a jailbroken iPhone, however, you can get rid of this problem entirely, thanks to a free tweak that lets you instantly pick up calls without having to interact with your phone's screen.