Doug tries to teach us some basic math fractions. In this particular case, Doug teaches how to do polynomial operations. He uses a chalk board and step by step shows his work on how to do this math. He uses the PEMDAS method but does not explain it. That is parenthesis first, ...more
Having trouble dividing exponents? Doug Simms from Free Math Tutoring provides an excellent tutorial on applying the 2nd Law of Exponents. If you need to know how to divide polynomials, watch this video covering easy to follow examples explaining and demonstrating the 2nd Law ...more
It's another Monday, which means once again, it's time to highlight some of the recent community submissions posted to the Math Craft corkboard. Additionally, I thought we'd take a look at the Mobius Strip. Rachel Mansur of Giveaway Tuesdays posted twice to the corkboard. The ...more
It's once again Monday, which means it's time to highlight some of the most recent community submissions posted to the Math Craft corkboard. Since two of these posts were on polyhedral versions of M.C. Escher's tessellations, I thought we'd take a look at building a simple tes ...more
When you see a problem involving a fraction, don't freak out. Dividing fractions is actually fairly easy once you learn the simple formula of how to do it. Math can be scary, but don't give up. Follow these simple steps, and soon you'll be dividing fractions like a pro. Step ...more
The noble board game has stalwartly staved off elimination in the face of more technologically advanced video games for four decades. Try as they might, video games just can't seem to surpass them as an easy-to-use diversion for large groups of seated indoor people. Since the ...more
This video shows how to use optimization methods in calculus. Optimization means finding the maximum or minimum values of a quantity or finding when the maximum or minimum occurs.What quantities are optimized in economics?we want to minimize costs or maximize revenue.First ste ...more
This video is a great one on learning about evaluating fractions. The voice explains how to first plug in the numbers given for each variable in the fractions. He also explains the importance of simplifying the top and bottom first before simplifying the entire fraction. He al ...more
In this math lesson, you will learn how to solve compound inequality problems. A compound inequality is a combination of two inequalities joined together by the words “and” or “or”. Examples of compound inequalities: First example: 2x-3<5 and x+14>11 Second example: 5m>65 o ...more
WonderHowTo is made up niche communities called Worlds. If you've yet to join one (or create your own), get a taste below of what's going on in the community. Check in every Wednesday for a roundup of new activities and projects. This week: mathematical sculptures, burning Xb ...more
As you might guess, one of the domains in which Microsoft Excel really excels is business math. Brush up on the stuff for your next or current job with this how-to. In this tutorial from everyone's favorite digital spreadsheet guru, YouTube's ExcelIsFun, the very first install ...more
Are you slightly rusty on your math skills? This video demonstrates how to find the volume of a sphere with a given radius. The first step is to sketch a solid and cross-sectional view of your sphere to get an understanding of the process to come. Next, find a formula for the ...more
In this Math Made Easy tutorial the instructor shows how to multiply rational equations. He states that multiplying rational equations is simply a process of simplifying equations, in which he says that first the polynomial equations should be factorized. He further shows how ...more
Watch this video to learn how to multiply fractions by fractions. First multiply the top numbers together. For example, if you have 3/5 * 4/7, multiply 3 * 4 and put your product on top of the fraction you will get as a product. Next, multiply the bottom numbers together and p ...more
Let's say today is your birthday. You've just put those boisterous, vicenarian times behind you, reaching the first big step to your upcoming midlife crisis—30 years old. Maybe this is your midlife crisis. After all, if you're not where you want to be in life when you join the ...more
Carol Platt was caught in the middle of the economic downturn with no backup plan. Searching for a stable job in an unstable economy proved to be difficult without a college degree. Her work history and past successes were overlooked. It had always been a dream of hers to comp ...more
Looking back on Alan Wake, more than a year and a half after its release, it's still one of my favorite games. The graphics and ambience have held up well in comparison to any other story driven game, and it's still the best third-person horror game out there, in terms of game ...more
Remember what life was like before your iPhone? Before there were palm-sized smartphones with seemingly endless features, there were phones like Motorola's RAZR that peaked with its embedded camera. Before that, there were simple flip phones with texting capabilities, bulky tw ...more
Math Craft admin Cory Poole provided quite a few recipes for sonobe models in his blog, and I followed one to make the pentakis dodecahedron here. I wasn't that happy with my first result because the colours kept on coming out wrong—i.e. two of the same colour next to each ot ...more
I spent the holiday weekend becoming fluent in the basics of modular origami. With practice, you can churn out the below models surprisingly quickly. Icosahedron, Octahedron & Cube. My first attempt at the octahedron can be seen here, which I found was actually a bit tougher t ...more
In this video, we learn how to graph an equation. First, pick a point out of the equation and see if it's a solution to the equation. This equation shows where two lines cross in the math problem. See if the two coordinates are part of the line that is on the equation. The two ...more
In this video, we learn how to find the surface area of a cube. Finding the surface area of a cube is something everyone will have to do in math. The easy formula to figure out this is: surface area= side x side x 6. Your first step to figuring out the problem is to find the l ...more
In this video the instructor shows how to solve quadratic equations by factoring. You can solve a quadratic equation by factoring them. To do this first write the equation in the standard from which is a*x*x + b*x + c = 0. Now factor the equation into two smaller equations of ...more
Are math problems getting you down? Well this should be of some help. Here is how to find a missing angle inside of a triangle. Now the first thing to remember when solving this type of question is that the sum of all the three angles inside a triangle is equal to 180 degrees. ...more
In this math tutorial the instructor shows us how to add three fractions with common denominators. He says that it is similar to adding two fractions with common denominator. He tells us first to add all the numbers in the numerator which gives us a new number which is the num ...more
Time to confess a personal bias: I love Gmail. I think it's the best thing since sliced bread. I try to be impartial when I write about software and online services, but seriously -- of all the free email services out there, why would you use anything else? A quick point of o ...more
Dry aged steak is a chophouse specialty; but you don't have to go to a fancy restaurant to get this yummy meal. This video will show you how to recreate the superior flavor of real dry-aged steak at home. You Will Need * A whole USDA Prime or Choice roast * Paper towels * Che ...more
As 2009 comes to a close, the Telegraph presents a compilation of this past year's wackiest inventions. As always, here at WonderHowTo, we are inspired and impressed by ingenuity. The contraptions below range from utter silliness (engagement ring bra) to downright amazing (see ...more
Even though my high school days are long behind me, I still find myself waking up in a cold sweat worrying about what my GPA is and what college I'm going to be able to get into. During those days I had to rely on coming up with my own equations to figure out my GPA between gr ...more
When it's time to calculate a tip at a restaurant or bar, I usually try some mental math at first, but sometimes I resort to opening the Calculator quickly from the Control Center on my iPhone and doing a quick calculation. But with Apple's Shortcuts app, there's an even easie ...more
Location services provider Mapbox is giving developers a means for building location-based AR apps and multi-user experiences with its new Mapbox AR toolkit. Mapbox AR provides developers with 125 million locations, business information from Foursquare and Factual, and live l ...more
All of the the tech industry giants, including Apple, Facebook, and Google, are working on new smartglasses and/or AR headsets, but this week, Google took a major step forward with gesture recognition technology that could make its way into AR wearables, posing a threat to Lea ...more
One of the very first Photoshop skills we learned in my tenth grade photojournalism class was cropping the background out of images. I hated it. It was extremely time consuming, and the magnetic lasso tool never seemed to want to cooperate with me. Nearly a decade later, the ...more
If you have some worn scuffed wood and want to give it a little bit of life. These steps might help you to ebonise, taking half the time!! First, sand the wood. Start with a 120 grade paper and finish with a 240 grade. From coarse to smooth. Once the surface is clean and smo ...more
Many new developers are diving right into the Microsoft HoloLens, but augmented and mixed reality are fairly big subjects in terms of learning. There's a lot to cover and, unfortunately, very few places for someone brand new to Windows Holographic to begin lessons. Daily—and ...more
Quietly, while the rest of the world was engaged in pandemic and political concerns, a few weeks ago Facebook casually upgraded its Spark AR platform with what it calls Unified Effect Publishing. The change now enables developers to submit AR effects once for publishing to bo ...more
Pie and pi lovers rejoice: whether you like eating pies or calculating their area, 3/14 is your day. March 14 is a holiday for both bakers and math nerds: Pi Day, where the day and month correspond to the first three digits of the most famous mathematical constant. If you're ...more
Many of the iPhone 15, 15 Plus, 15 Pro, and 15 Pro Max features were carried over from last year's models. Still, quite a few capabilities are exclusive to the 2023 lineup, and some may be worth the upgrade. While the iPhone 15 Pro and 15 Pro Max possess many of the new featu ...more
We've seen many things get gummy-ized over the years—worms, insects, Coke bottles, glass cleaner, Legos, brains, Nutella, and even tiny LEDs—but nothing compares to YouTuber and WonderHowTo favorite Grant Thompson, aka The King of Random, who made one helluva creepy gummy chic ...more
For many, phones are starting to replace televisions as the primary device for watching videos. Thanks to their portability and easy to use apps, it's often simpler to watch Netflix, Hulu, YouTube, or Prime Instant Video on the smaller screen. But not every phone is suited to ...more
Are you a lawyer who's married to a computer programmer? Chances are you might not have even dated if you first met online. In a recent study of its users database, The Grade, a popular mobile dating app, analyzed users' matches and found out that a person's occupation plays ...more
The recent announcement of a $480 million US Army contract awarded to Microsoft over Magic Leap for supplying 100,000 augmented reality headsets shows just a how lucrative the enterprise (and government) sector can be for AR. However, considering sales of total smartphones to ...more
There is no iPad version of Apple's Calculator app, so you won't find it on your Home Screen, in your App Library, or as a shortcut in the Control Center. But that doesn't mean your iPad doesn't have an official calculator. Before the first iPad in 2010, Apple's development t ...more
As was mentioned by the great OTW last week, TOR, aka The Onion Router, has had its integrity attacked by the NSA. In an attempt to reduce the anonymity granted by the service, the NSA has opened a great many nodes of their own. The purpose is presumably to trace the origin of ...more
Solving long and extensively complicated equations in grade school was tough to do by hand. Keeping track of which part of the equation to solve first took time, training, and lots of bad grades. As soon as middle school began, our dependance on calculators grew and difficult ...more
I have never been the most artistic person in the world, but never overlook a great piece of work when I see one. With George Lucas selling the Star Wars franchise to Disney for more money than I could make in ten lifetimes, it's safe to say the franchise has a lot of fans. S ...more
Android Nougat has a new API that lets apps create their own custom Quick Settings tiles. A similar feature was buried in Android Marshmallow, but that required a hacky workaround, and most manufacturers disabled it in their custom versions of Android 6.0. But since this is an ...more
When we are building programs that communicate over a network, how can we keep our data private? The last thing we want is some other lousy hacker sniffing our packets, so how do we stop them? The easy answer: encryption. However, this is a very wide-ranging answer. Today we'r ...more
If we were to assign a theme for the 2019 edition of the Next Reality 30 (NR30), it might be something along the lines of, "What have you done for me lately?" Many of the top names in the industry from the 2018 edition remain the same, but their positions have shuffled. The p ...more
Apple has four iPhone models for the remaining months of 2020, but the most impressive ones are the iPhone 12 Pro and iPhone 12 Pro Max. While the iPhone 12 and iPhone 12 mini are great smartphones, the "Pro" models offer more advanced features, especially for photographers an ...more
Apple just announced its new iPhone 15, iPhone 15 Plus, iPhone 15 Pro, and iPhone 15 Pro Max models. This year, the 15 and 15 Plus models have a lot in common with the 15 Pro and 15 Pro Max, but there are still some pretty incredible features that the Pro lineup sports that th ...more
While Apple, Facebook, and Snapchat are still working on their first-generation AR wearables, startup North is already preparing to bring its second-generation smartglasses to the world in 2020. On Tuesday, North announced that Focals 2.0, which will feature a lighter, slimme ...more
I grew up eating Korean, Japanese, and Chinese food, but it wasn't until college that I experienced Thai and Vietnamese cooking. Once I started, I couldn't get enough of these cuisines. The dishes had an incredible richness and savor that I couldn't identify, but whatever it w ...more
If you have a modern iPhone, you have an excellent video recorder at your disposal. Every iPhone since the 6S has the ability to shoot in 4K resolution, and each new iteration has brought new capabilities to the table. But even the best mobile shooter can use a little extra he ...more
The day has finally arrived — Samsung has unveiled the Galaxy S9 and S9+. Apart from minor upgrades, the two might not appear to be much different from last year's S8 and S8+, but that's not necessarily a bad thing. One feature that hasn't changed is the Galaxy's IP68 water-re ...more
Beijing- and Seattle-based DataMesh have announced the release of a new enterprise geared mixed reality middleware — MeshExpert. This solution for collaborative interaction with dynamic data is made up of two primary components: MeshExpert Live!, a 4K mixed reality capture sys ...more
If preorder delays are any indication, the iPhone X certainly has some buzz. But does the X have the quality to support that buzz in the long run? After all, a $1,000 (or more) iPhone feels more like an investment than a smartphone purchase. The question on any prospective buy ...more
The ability to make a meal for yourself used to be one of those life skills you had to learn or otherwise you would starve, but the rise of convenience foods, takeout, and other aspects of modern living have made it entirely possible to be a grown person and not know what to d ...more
A continuation of my earlier science testing in Minecraft, I worked on a few things requested and retouched on TNT as there was suggestion of possible (and confirmed) altered circumstances. Previously, I worked out the science of TNT, Items and Players, and this time I sought ...more
Over the past several weeks, I’ve had the pleasure of test driving Samsung’s next big thing, the Galaxy S4. After putting the GS4 through its paces, I have a clear picture of what this device is capable of. I’ve covered the features of the device before, and now I’ll tell you ...more