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 calculate the probability of two dependent events in statistics.
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 611th installment in their series of digital spreadsheet magic tricks, you'll learn how to create an array formula to summarize year over year sales using the SUMPRODUCT and YEAR functions. Also see how to calculate a formula for percentage change.
Could you use a little help figuring out how to find an unknown angle in a paralellogram? Watch this free video geometry lesson. 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 free math tutorial, you'll learn how to calculate a missing angle in ...
Need to calculate the area between two curves? This free video lesson will show you how. 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...
Need help figuring out how to calculate indefinite integrals or antiderivatives in calculus? 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...
Want to know how to use the product rule to calculate derivatives in calculus? 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 find d...
Learn how to use trigonometric functions to calculate the sides of a right triangle. 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 ...
Whether you're interested in learning Microsoft Excel from the bottom up or just looking to pick up a few tips and tricks, you're in the right place. In this tutorial from everyone's favorite digital spreadsheet guru, ExcelIsFun, the 11th installment in his "Highline Excel Class" series of free video Excel lessons, you'll learn how to transform bad data into useful data using formulas and text functions such as TRIM, PROPER, SUBSTITUTE, REPLACE, FIND and LEFT. Also see how to use the ampersan...
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.
Love Microsoft Excel? This clip contains a tip that just might induce you to. With this free video tutorial from ExcelIsFun, the 70th installment of his "YouTubers Love Excel" or YTLE series of free video MS Excel lessons, you'll learn how to clean up a bad data set with the TRIM function before building a pivot table (PivotTable) to calculate an average. Learn to love digital spreadsheets more perfectly with the tricks outlined in this free Microsoft Office how-to.
New to 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 Excel tutorial from ExcelIsFun, the 194th installment in their series of digital spreadsheet magic tricks, you'll learn how to use the SUM, VLOOKUP and ROUND functions to create a gradebook based on percentage scores that will calculate grade for you automatically. See also how the VLOOKUP and the percentage format can deliver the wrong grade when you dont use the ...
In this Home & Garden video tutorial you will learn how to test lawn irrigation systems. John White presents this video. This is done by a simple can test. Take a few cans of the same size with vertical walls and flat bottom. Place them around the sprinkler head at different distances and make sure they are horizontal. This will show whether the sprinkler is spreading water evenly. Then you can time it and measure the amount of water. This way in future, you will know how long to run the syst...
Watch Southwest Lawn and Garden's John white and Dr. Bernd Leinauer Discuss the importance of Bermuda grass lawn fertilization and the correct techniques involved. You'll learn how to interpret the meaning behind the fertilizer label, and why a complete fertilizer, including nitrogen, phosphorus and Potassium. Along with how to calculate much fertilizer to use per square foot, You'll learn how each important nutrient helps your lawn, and why having the correct balance is so important. Most im...
The guy first gives the definition of differential equations. He explains that a differential equation is an equation that contains the derivatives of an unknown function. He then gives some examples of differential equation and explains what the equation's order means. After that he gives an example on how to solve a simple equation. He calculates it and gives examples of graphs. Then he explains what a general solution is and how to narrow down the number of solutions using data from the pr...
New to Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. With this video tutorial from ExcelIsFun, the 329th installment in their series of digital spreadsheet video tutorials, you'll learn how to create a frequency table. Then see how to calculate the midpoint of each category and make a frequency polygon with two or more lines (two or more data sets).
New to Excel? Looking for a tip? How about a tip so mind-blowingly advanced as to qualify as a magic trick? You're in luck. In this Excel tutorial from ExcelIsFun, the 480th installment in their series of digital spreadsheet magic tricks, you'll learn how to calculate a percentage of total from a database data set when the variable of interest is text (word). This is accomplished with recourse to the COUNTIF, SUM & COUNTA functions.
New to Excel? Looking for a tip? How about a tip so mind-blowingly advanced as to qualify as a magic trick? You're in luck. In this Excel tutorial from ExcelIsFun, the 533rd installment in their series of digital spreadsheet magic tricks, you'll learn how to create a formula to calculate the difference between start date/time & end date/time excluding holidays and weekends. This is accomplished with recourse to Excel's NETWORKINGDAYS and MOD functions.
Open Microsoft Office Excel. Across the top notice letters (columns), along the sides are numbers (rows). The columns and rows can be extended by highlighting sections and right clicking and choosing the high of the row. You can also select to add a border, and change the orientation of your cells.
A wedding budget can quickly get out of hand as your planning progresses. Things like centerpieces are a major cause of skyrocketing wedding costs. If you have a little time and want to easily trim down the cost of your wedding, think about making your own floral centerpieces. You'll learn how to with this simple tutorial from EZ Bouquet. You'll soon see how easy it is to make a beautiful floral arrangement in an open container and how to secure the arrangement in the base of the container. A...
In this video the tutor shows how to calculate the area of a rhombus. He gives the formula for the area of a rhombus as area a = ( D * d ) / 2 where D is the length of the longer diagonal and d is the length of the shorter diagonal. He shows how to solve such problems by taking an example of rhombus with lengths of longer and shorted diagonal and computes its area by substituting the values in the area formula. This video shows how to compute the area of a rhombus when the lengths of its long...
This video shows you exactly how to weather-strip a door to keep down heating costs. Step by step instructions on how to check your doors to see if they need weather-stripping and how to install the weather-stripping. This also teaches you how to check to make sure that your weather-stripping has been installed correctly on your door to keep out any drafts. All that you need is some weather-stripping, a tape measure, a utility knife, a power drill, and some screws. This video teaches you how ...
An educational video from free math tutoring that shows an easy way to calculate differences of temperature. Many times people commit simple mistakes in subtracting temperatures that lead to illogical results. This video explains a very common pitfall and at the same time, clears up an important concept in temperature subtraction.
This video is about how to learn how to calculate what key to play a piece of music in. The instructor tells you that you need to know two things: how to read music notes and how understand the Circle of Fifths. Putting together these two layers of knowledge you can figure out what possible keys the music can be in. You can normally narrow down your possibility to two choices. Normally, the key to choose correlates with the last note in the music.
In this video the instructor talks about compound and continuous interest formula calculations. You need to understand the concepts of simple and compound interest. Only then you can understand what the bank is doing to your money which are in your bank account. Simple interest is a method where when returning a borrowed sum to some one you pay additional price for using the money all this time. Compound interest is a similar concept where you pay interest on the original sum borrowed, and al...
In this tutorial the instructor shows a method to compute the interior angle sum of a polygon. He gives us the formula for the interior angle sum of a convex polygon as (n-2) * 180 where n is the number of sides of the polygon. He goes and take a 6 sided polygon as an example and does the math by substituting the value of 'n' in the equation and arrives at the result. This video clearly gives the formula and demonstrates with an example of how to calculate the sum of interior angles of a poly...
From the people who brought you the Dummies instructional book series, brings you the same non-intimidating guides in video form. This is Mathematics for Dummies. Just watch this video tutorial to learn how to find the volume of a solid with a circular cross-section, For Dummies.
Three point lighting is the standard used to illuminate a subject for amateur film, video, and even theater application.
The iPhone is an indispensable part of it's owners lives, and very fragile. If yours has broken and you don't want to shell out the cost of the phone again to have it fixed, watch this video for an easy guide to repairing a broken screen and digitizer (touchpad) using parts you can order for cheap on eBay.
Your home's siding will only last so long, so when it's time to replace it, what will you do? Well, calling a professional will cost you thousands, but this home video from Buildipedia will walk you through the steps to replace your home's siding yourself.
You can certainly use Skype to make free Internet phone calls through your iPod Touch, though the microphone/headphone combo headset sold by Apple is thirty dollars. Make one for a fraction of that cost using a headphone splitter and the mod process outlined in this video.
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 697th installment in their series of digital spreadsheet magic tricks, you'll learn how to allocate $950 across 7 days including the extra penny with a single formula.
Real rockets require top ingenuity from physics and engineering experts, but you can construct a smaller replica that costs almost nothing can can be made from materials you already have at home or can find at a hardware store.
You already drop mad stacks for your MAC eyeshadows and Lancome blushes - why not save money and go eco-friendly with reusable, recycled makeup organizers?
Lightweight rod support bracket from Long Valley Equipment mounts directly to front of the camera, saving weight and cost of other methods. Holds 15mm rods at 60mm spacing to support matte box, follow focus, remote focus, zoom motor.
Living well doesn't have to cost an arm and a leg. And living cheap doesn't have to look like you're living cheap.
Kevin Rose is joined by John Todd, a well known, leading Asterisk expert, to introduce you to the amazing VoIP (Voice over IP) world of Asterisk, the open source voip telephony toolkit. In this episode, Kevin and John take you through the installation and configuration of this powerful tool, and show how it can be used to give anyone complete control over their phone experiences, such as voice over wifi, eliminating phone costs, choosing from hundreds of VoIP providers, creating your own voic...
Using infrared (IR) light pens and the Wii Remote, it is possible to create very low-cost multi-point interactive whiteboards and multi-point tablet displays. Johnny Chung Lee, Carnegie Mellon University. The software can be downloaded at http://johnnylee.net
This video shows how to make an origami swan using 471 paper triangles. Your loved one will appreciate this gift because you put in a tremendous amount of effort, dedication and patience required for origami, but its easy to assemble and the only money you will spend is cost of 15 paper sheets. Good luck!
Perhaps not as easy as using a calculator, but easy nevertheless! With mathematics, as with anything else, not everyone progresses at the same rate. Happily, in the age of Internet video tutorials, this isn't a problem. Those who progress quickly can go beyond what's being taught them and those who are struggling likewise have all the time in the world to catch up. With this free video math lesson, you'll learn how to find square roots by hand.
Want to find the value of a t-statistic confidence interval for a small sample? This clip's your ticket. 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. For all of the details, watch this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials.
