Looking for an easy way to solve rate-of-change problems? Use the chain rule! 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 calcula...
Need to know how to use derivatives to solve rate-of-change problems? Find out. 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 solve...
In this tutorial, we learn how to find your recovery heart rate. First, get your heart rate up by doing some sort of activity that you enjoy doing. After you have your heart rate up, figure out how many beats you have in fifteen seconds. After you have counted this, multiply it by four. Now, sit back and relax for two minutes exactly. Next, time another fifteen seconds with your stop watch and count how many beats your heart has. Multiply this number by four, then subtract the two numbers. Af...
Less than a month after launching its augmented reality Swim Goggles, wearables startup Form is preparing to add a major new feature for aquatic athletes.
In the changes to the App Store Review Guidelines for iOS 11, Apple has announced that developers must use the App Store rating API. The API was introduced in the iOS 10.3 beta period as something that would eventually become mandatory. Now, Apple has followed through on that promise.
Can't figure out how to give songs star ratings anymore in your iPhone's Music app? That's because Apple removed the ability to do so from the new iOS 10 update, just as I expected they would. It's still possible to rate songs, it's just very irritating.
This video shows you some of the new features in World of Warcraft: Cataclysm, namely the rated battelgrounds and new gear. You can earn some new special items through honor points or conquest points, and here is how you can earn both.
As you might guess, one of the domains in which Microsoft Excel really excels is finance 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 64th installment in his "Excel Finance Class" series of free video lessons, you'll learn how to chart assumed constant growth rate changes in Excel.
As you might guess, one of the domains in which Microsoft Excel really excels is finance 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 50th installment in his "Excel Finance Class" series of free video lessons, you'll learn how to demonstrate the inverse relationship between bond rate and price with a scater chart.
As you might guess, one of the domains in which Microsoft Excel really excels is finance 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 54th installment in his "Excel Finance Class" series of free video lessons, you'll learn how to calculate interest rate risk or IRR.
In this free video economics lesson from Salman Khan, you'll learn about international exchange rates and why they vary. For all of the relevant details, and to learn more about the causes and effects of currency value fluctuation, watch this clip.
As you might guess, one of the domains in which Microsoft Excel really excels is finance 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 12th installment in his "Excel Finance Class" series of free video lessons, you'll learn how to calculate average and marginal tax rates with Excel.
If you're driving a commercial vehicle or doing a lot of driving for a company, there are ways to claim deductions on your tax return for actual vehicle expenses. In this video you will learn how to calculate your standard mileage rates to determine how much you will be getting on your tax refund if your employer is not reimbursing you for gas or if you're running a small business.
The concept of percentage growth or decline is confusing to a lot of people. If you're one of those people, watch this video. It breaks down how percentage change and growth rates work and how you can calculate them from any pair of numbers.
Love Microsoft Excel? This clip contains a tip that just might induce you to. With this free video tutorial from ExcelIsFun, the 36th installment of his "YouTubers Love Excel" or YTLE series of free video MS Excel lessons, you'll learn how to use the VLOOKUP function to determine an increase in salary based on a rating scale.
This Halo Mapping Tools (HMT) tutorial will show you how to make weapons have a faster ROF (Rate of Fire) in Halo PC.
Anyone can play chess if they have the right training and in this three part video series The Grob Chess Club shows you how to move up to Class E (rated 1000-1199). This tutorial is great for everyone from beginners through people rated under 200.
You can use the Canon EOS 7D to shoot digital video at a variety of frame rates and resolutions up to full HD. In this video, see the basics of movie mode and how to use it. This is the best digital SLR camera to film video with.
If you're considering purchasing Apple's new 2020 iPhone SE, which brings many modern components into the compact body of an iPhone 8, you should know what its dust and water resistance rating means. Just how dirty and wet can the iPhone SE get without breaking any functionality?
Pandora has a simple rating system that works by hitting either the thumbs-up or thumbs-down icon on a track that's playing on your station. If you choose the former, the song you like along with others similar to it will play with more frequency, while selecting the latter will prevent that song and others like it from playing in your station moving forward.
Researchers have developed a new method that harnesses the power of augmented reality to detect a patient's heart rate using a Microsoft HoloLens and computer vision.
Your heart is constantly work for you, yet you think nothing of it—and Samsung wants to change that. They stuck a dedicated heart-rate monitor on the Galaxy S5, they're putting one in the upcoming Note 4, and they're bound to slap one in every Galaxy device thereafter.
In this video, we learn how to back out the tax from a receipt. If you have a receipt where you see how much you paid and know the tax rate, except you want to figure out the cost of the item before the tax. First, take the cost of the item including tax and what the tax rate is. To figure out the original price, let x equal the cost of the item. Add the tax to the cost of the item which will equal the cost you paid. Perform the equation 1x+(tax rate)= (total price). After you figure this equ...
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 623rd installment in their series of digital spreadsheet magic tricks, you'll learn how to see the pain that pay day loans inflict on people using Excel. Learn how to calculate APR (Annual Percentage Rate), EAR (Effective Annual Rate), an Amortization Table and the EAR for a loan that takes a fee out up front. Learn ...
In this video tutorial the instructor shows how to derive the formula to compute interest compounded annually. He starts with explaining the basic concepts like principle which is the amount you borrow and the rate of interest or annual percentage rate (APR), which is the rate at which you pay the interest up on the borrowed principle. He shows that the amount after the end of one year is amount A = P(1+APR),and he goes on and generalizes how to compute it for n years. This video shows how to...
Horrible at saving money? Creating a savings account to put aside and accumulate money is easier with these strategies.
A light meter can prove to be an invaluable tool on any film set, allowing you to quickly and efficiently set lights and know the correct exposure values of those lights. Light meters were initially designed for still photographers and cinematographers can easily calibrate them to a given film stock speed for shooting film. But what about today’s digital cinematographer? I’m glad you asked. In this video tutorial you'll see how you can use a light meter to quickly and efficiently light a scen...
When it comes to resistance to the elements, Samsung seems to believe in the old saying "if it ain't broke, don't fix it." They've carried over the IP68 rating under IEC 60529 that was first found on the S8 all the way to their tenth-anniversary flagship, the Galaxy S10. While this certainly sounds great on paper, it's natural to want to dig a little deeper and find out what the rating means.
According to Google's new Android ecosystem transparency report, you're eleven times more likely to be infected by malware if you're running Android Lollipop (5.0) as opposed to Android Pie (9). The same report shows that if you sideload apps, you're almost seven times more likely to be infected than if you stick to Google Play as your app source. All of the data provided in the report is quite interesting, but there's a clear pattern among malware-infected users.
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.
Introduction So today and yesterday I was playing with TNT (as we all do at one point or another) and I was curious about a few things. From this curiosity, I went on to discover some of the science behind some things you may or may not have known.
Introduction So, today and yesterday I was playing with TNT (as we all do at one point or another) and was curious about a few things. From this curiosity, I went onto discover some of the science behind some things you may or may not have known.
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. With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to simplify a rate or ration using simple math.
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. With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to unpack and solve word problems that require you to find a unit rate.
So, you've started playing golf, and you've started getting competitive... Figure out a golf handicap with help from this free video from expert golf site, Golf Link. A golfer's handicap is determined by two factors, which are the course rating and the slope of the golf course. Subtract the course rating from a golf score, multiply by 113 and divide by the slope, and finally multiply by .96 to find a handicap.
Dr. Allen Bridges details methods for detection of estrus in beef cattle, part of an efficient breeding program. Poor estrus detection results in poor pregnancy rates. Learn how to maximize pregnancy rates and increase the health of female beef cattle by watching this video tutorial.
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 673rd installment in their series of digital spreadsheet magic tricks, you'll learn how to use the SUMPRODUCT formula to calculate commission amounts based on varying commission rates based on cumulative sales totals for each month.
After months of waiting, the iPhone 11 is here. At an event in Cupertino, Apple unveiled the iPhone 11, 11 Pro and 11 Pro max. You probably have a lot of questions after reviewing the specs sheet, including wanting to know more about the IP68 rating that all three phones have. We're here to clarify.
Samsung's not one to make drastic changes to what already works. They've continued on with the IP68 rating under IEC 60529 first given to the Galaxy S8 all the way to the the Galaxy Note 10. If you're a little confused as to what this rating means, don't worry, it's actually pretty simple once you get to the meat and bones of it.
Waking up your Apple Watch to see "your heart has shown signs of an irregular rhythm suggestive of atrial fibrillation" might come as a shock. While your watch can send you warnings if it detects a fast or low heart rate, those messages are pretty vague, while the abnormal arrhythmia alert can downright scary. So what should you do if you receive one of these AFib notifications?
