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 unpack and solve word problems that require you to multiply (or divide) and express a...
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 2nd installment in his "Excel Business Math" series of free video lessons, you'll learn how to create math formulas in MS Excel using addition, subtraction, multiplication, division, exponents, and parentheses. See how 2+2*2 is not equal ...
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 6th installment in his "Excel Business Math" series of free video lessons, you'll learn about the importance of cell References in Excel formulas and functions. Learn about a relative and absolute cell references in Excel formulas with th...
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 48th installment in his "Excel Business Math" series of free video lessons, you'll learn about the basics of markup on cost and markup on selling price. Markup on cost uses the base cost. Markup on selling price uses the base selling price.
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 50th installment in his "Excel Business Math" series of free video lessons, you'll learn how to make calculations for markup on selling price in MS Excel.
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 29th installment in his "Excel Business Math" series of free video lessons, you'll learn how to solve for rate, amount of change and rate of change.
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 9th installment in his "Excel Business Math" series of free video lessons, you'll learn about when you must use the ROUND function in Excel. Round to the penny or dollar with this free video lesson.
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 10th installment in his "Excel Business Math" series of free video lessons, you'll learn how to add and subtract using the SUM function.
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 installment in his "Beauty of Excel" series of free video lessons, you'll learn how to create a contribution margin income statement across various units sold.
Learn how to make an e-mail server on your home computer to host your own web page and webmail service by following the steps outlined in this video tutorial. You will need a web server, an e-mail server, and a webmail interface. For the server, the most common program is WampServer, which you will need to download. Run through the installation process and grant the program access to your fire. Click on the new icon on your desktop and click Put Online and then Start All Services. This will g...
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, part of his "Excel Finance Class" series of free video lessons, you'll learn how to use the PV and PMT functions together to decide how much you need at retirement and how much you should deposit each month during your working years.
In arithmetic, the simplest expression is far preferred to the long eye-boggling one. Stop making your expressions painful optical illusions by watching this tutorial on how to write rational expressions in the lowest terms.
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 2nd installment in his "Excel Finance Trick" series of free video lessons, you'll learn how to use the FV function. See the math formula for calculating future value and for calculating the effective interest rate. Also see long hand how c...
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 8th installment in his "Excel Business Math" series of free video lessons, you'll learn how to work with whole and decimal numbers. See how to write words to represent numbers (for checks). See how formatting can hide decimals.
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 32nd installment in his "Excel Business Math" series of free video lessons, you'll learn how to solve simple markup (mark-up) & markdown (mark-down) business math problems.
PatrickJMT takes you through step by step on the basics of how to use curve sketching to solve calculus equations. Steps that are covered in this two part video include domain, intercepts, symmetry, horizontal and vertical asymtotes, intervals of increase/decrease, local maximums and minimums, concavity and points of inflection, and finally the sketch. A rational function is looked at as an example. The problem is to graph y equals (x - 1) divided by x to the power of 2. This video clip cover...
This video teaches you to sync Google Calender with the Apple iPad Calender app. The first step involves going to 'Settings' and then to 'Mail Contacts Calenders'. Add an account to the application. For doing this, go to Microsoft Exchange. Type in your email ID in the space provided for it and skip domain. Type in your username and password. Click on 'Next' and 'Accept' in the resulting box. Then a box named 'Server' appears. For the server type 'm.google.com' and click 'Next'. Turn off the ...
YouTube user NotesCollegeAlgebra teaches you how to evaluate combinations of functions from graphs. You start off with a graph and some functions. (f+g)(-3), (g/f)(0) and (fg)(-6). You start looking at the graph and the first line and you get (f+g)(-3)=f(-3)+g(-3)=3+1=4. (g/f)(0)=g(0)/f(0)=2/-3=-2/3. (fg)(-6)=f(-6)g(-6)=(-3). But then when you want to find out g(-6) you realize -6 is not in g's domain. So the answer to the last equation is that it doesn't exist.
Professor ElvisZap teaches you how to stretch shift and reflect the graph of a square root. A square root function is the opposite of a squared function. You start with y=square root of (x-1) it becomes 0<=x-1. then 1 <=x. You use the graph and solve it as you would for any function using small values first, then you have y=square root of x - 1, the domain 0<=x. This shifted the graph down 1 unit. 0=square root of x - 1, 1=square root of x, 1=x. Then the range is [-1 + infinity). Continue in ...
YouTube user NotesCollegeAlgebra teaches you how to interpret a graph. You will learn how to read it and extract information. You go to the graph to see that f(-4)=-2. f(1.5)=2, so it's positive. You then have the question: For what x-values is f(x)<0? You go to the graph and see that you come up with (-5,3). The x-int is (3,0) (4,0). The y-int is (0,4). The domain is (-5,4) and the range is (-4,4). You then have the question: how often does y=7/5 intercept the graph? The answer is 4 times. T...
A conservative vector field is defined as being the gradient of a function, or as a scaler potential. Conservative vector fields are not dependent on the path; they are path independent. Conversely, the path independence of the vector field is measured by how conservative it is. These fields are also characterized as being ir-rotational, which means they have vanishing curls. Actually, ir-rotational vector fields are conservative as long as a certain condition on the geometry of the domain is...
The app with the most significant update on iOS 17.5 is, by far, Apple News. While there are a few changes in Books and Settings, as well as minor changes in apps like Podcasts, Apple News has at least 11 new features and changes you should know, some of which are worth getting excited about.
Apple released the first public beta for iOS 13.5.5 on Monday, June 1. The update comes just hours after Apple seeded developers their first 13.5.5 beta, as well as the public release of iOS 13.5.1, which introduced a patch for the Unc0ver jailbreak exploit. It was a big day for iOS software.
Apple released the first developer beta for iOS 13.5.5 on Monday, June 1. The update comes on the same day Apple released iOS 13.5.1 to the public, which patched the unc0ver jailbreak, and 12 days after iOS 13.5, which introduced COVID-19 exposure notifications, in addition to other new features.
Apple seeded public testers the second beta for iOS 13.3 eight days ago. That update mainly added stability patches to iOS as a whole, as did the public releases of iOS 13.2.2 and iOS 13.2.3. Now, following the release of iOS 13.3 developer beta 3 earlier today, Apple seeded the same beta to public testers.
Just two days ago, on Nov. 18, Apple released iOS 13.2.3 to the general public, which included stability updates for bugs affecting iOS 13.2 and earlier. Today's update isn't for the general public, however. Instead, Apple just pushed out iOS 13.3 developer beta 3 for software testers.
This week's news that Magic Leap's patents had entered collateral limbo, now in the hands of JPMorgan Chase, threw a dark cloud over the company.
While The New York Times' augmented reality section has largely been dormant in 2019 (so far), USA Today has continued to crank out AR news stories.
Auditing websites and discovering vulnerabilities can be a challenge. With RapidScan and UserLAnd combined, anyone with an unrooted Android phone can start hacking websites with a few simple commands.
When Magic Leap One owners unbox their new devices over the next few months (or, if they are lucky, days), they will have some familiar augmented reality news content to consume.
The latest augmented reality feature from The New York Times gives readers a close-up view of the damage left behind by the eruption of Volcán de Fuego in Guatemala earlier this month.
On Monday, German newspaper and digital publisher Axel Springer announced its role as the latest company to invest in Magic Leap. This is just the latest in a series of investments the augmented reality company has garnered from the likes of Google, Qualcomm, Alibaba, Legendary Entertainment, Warner Bros., and others amounting to almost $2 billion in overall funding.
Nauto, which develops driver-monitor cameras and algorithms for autonomous vehicles, is among a growing list of driverless startups able to attract tens of millions of dollars in funding after raising $159 million in its latest round of financing.
I couldn't live without seeing previews of certain notifications on my iPhone, but there are definitely some that I'd like to hide, either because they're annoying or because I don't want anyone else to see them. Previously, you could only disable notification previews for Apple apps such as Mail, Messages, Photos, and Wallet, but in iOS 11, you can disable previews for every single app on your iPhone.
Hyundai Motor Company says it will launch its driverless tech ahead of schedule, but the Korean carmaker will remain behind mainstream rivals, including General Motors (GM), Nissan, and Honda.
Hutch Interiors, Inc., makers of an eponymous augmented reality home design app for iOS and Android, has closed a series A round of funding, led by online real estate company Zillow Group, totaling $10 million.
Rumor has it that Google Assistant will be coming to an iPhone near you. A "trusted source" broke the news of GA's arrival on iOS to Android Police ahead of Google's I/O conference this week.
While the numbers may not always seem to agree, the message remains the same: augmented reality is a growth segment. This week's edition of Market Reality starts with two new reports outlining the expected good fortunes for the industry and concludes with an example of a company capitalizing on their own growth.
Apple is in the process of developing its own graphics processors for future iPhones, according to recent reports.
Live streaming has emerged as a major part of the way people share information. With celebrities and news/media personalities utilizing mobile live streaming effectively to reach thousands, the appeal has bolstered the fortunes of Twitter's Periscope and Facebook's Live. Now, Google is ready to join the fray, and it's backed by its enormous YouTube property. According to initial reports, Google is at work on a brand new application for YouTube simply called "Connect," which will take its curr...