How To

In Fourier analysis, a Fourier series is a method of representing a function in terms of trigonometric functions. Fourier series are extremely prominent in signal analysis and in the study of partial differential equations, where they appear in solutions...

You go to take out a pair of pants you haven’t worn in a while, and suddenly you notice something strange freckled across the fabric—“Is that mold!?” It’s not uncommon for clothing to start growing mold, especially if it's been stored in a damp place or w...

Placing rivets in leather can be great for decoration, as well as to hold two pieces of leather together. To make your riveting look professional, you have to choose the right materials, including the proper length and finish of the rivet. You can set riv...

This wikiHow teaches you how to select an image from your device's Camera Roll and send it to a contact on Facebook Messenger as a chat message, using an iPhone or iPad.

If you have canaries it can be very helpful to know whether they are male or female. Identifying the sexes of your birds can help you avoid having them mate, which is important if you don't want a bunch of new baby birds to care for. The best way to corre...

As an active member of the U.S. electorate, you may want to contact your senator to express your opinion on pending legislation or share your viewpoint on a recent event. To address a senator, use official titles and a respectful tone. Follow similar prot...

This wikiHow guide will show you how to use the IF function in Microsoft Excel to create logic formulas. If-else statements indicate that one value should appear “if” a condition is met, “else” show a different value if the condition isn’t met. The IF fun...

With the addition of a few rustic paver stones, you can transform a humdrum backyard into an enchanted wilderness escape. All you need is a basic plan for your new patio space and an eye-catching design for the stones themselves. Once the initial planning...

In Sanskrit, “Namaste” means “the divine in me bows to the divine to you.” This greeting, prayer, and way of showing thanks has become internationally known due to the proliferation of yoga. Namaste can take on many meanings depending on the context, but...

Stool softeners are usually recommended as a short-term treatment for constipation. They work by drawing water into your stool, making them easier to pass. This medication can be very effective as long as it is taken properly, under your doctor’s supervis...

Cocktails are fun, but cocktails for a crowd can be a lot of work! Fortunately, you can make a batch of martinis ahead of time. Just chill the martinis in a large bottle or pitcher and let your guests serve themselves. Make classic gin martinis that peopl...

If you have a passion and love for dogs, you already possess the first requirement for becoming a dog breeder! Now you’ll need to figure out which kind of dog you want to breed and learn as much about that breed as possible. You’ll also need a suitable sp...

Wainscoting is paneling that’s used to decorate the walls in a room. Decorating with wainscoting is a great way to freshen up a space and make it more interesting to look at. Before you revamp a room with wainscoting, you should choose a style that goes w...

Aquamarine is a blue green stone that is the birthstone for the month of March. It is a hardy stone. Because of its light color, the stone can get dirty or cloudy when you wear the ring. Cleaning your aquamarine often can keep it beautiful and shining. To...

When Lyft riders need to hitch a ride, they use the Lyft app. However, as a Lyft driver, you'll need to use the special Lyft Driver app. If you're new to driving for Lyft, this wikiHow will help you get acquainted with the app.

Rusted or tarnished metals can make chains and necklaces appear dull. To prevent your items from rusting, keep your jewelry away from humidity and water. Store the jewelry safely in an enclosed container. Regular cleanings can also keep your chains sparkl...