Welcome back! In our last training session, we covered some advanced list topics. We'll be going deeper into the advanced list rabbit hole today with lambda and lambda operators! (And I'm not talking about Gordan Freeman)
Back for the second part,
Developing GUI apps in python is really cool. I ask those who understand the language to help convert some of the command-line or console programs or apps ( I mean programs that are useful to a hacker ) to GUI. I know GUI makes us lazy and not wanna learn but we should all know its fast. Today's tutorial is on p2p chat app I developed last week and decided to share it with the community since its kinda cool.
This video demonstrates how to create collapsible and expandable cell ranges in Excel. The first thing that you will have to is to prepare your Excel worksheet that contains the data which you need to be expandable and collapsible. On the first cell under your Running Total column, type in the function, "=SUM". Select the Sales cell corresponding to that cell then type in Shift+Colon. Click on the first value and hit the F4 key to lock your row reference. The result will automatically show. Y...
A CNC router machine is probably the most useful tool a hobbyist can own, but the price for a CNC machine on the market is way more than the average hobbyist is willing to spend. You can build your own CNC with very basic tools, little knowledge of machinery, mechanics, or electronics, but be warned, these machines are inherently dangerous, so wear the proper protection and use common sense. At the very least, read the instructions and precautions on every tool you use.
In this tutorial, we learn how to identify the constraints & function to be optimized. When you are asked for the elements of constraints, you are being asked for the plain English version. If you are told you only have so much of something inside of a written problem, then take into account all of the limits that are listed. Once you have these, write them down so you have them in one place. After this, write down the number for the unrestricted part of the problem. After this, you will be a...
Are you a newbie when it comes to Gmail? Watch this video and learn. It starts of with a brief overview of the registration procedure. Then proceeds to explain the welcome screen and then the main interface.
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 702nd installment in their series of digital spreadsheet magic tricks, you'll learn how to look up two values at once and return then both to one cell using 2 VLOOKUP functions and concatenation (Ampersand &) or two cells using a single VLOOKUP and the COLUMNS function.
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 684th installment in their series of digital spreadsheet magic tricks, you'll learn how to do single-condition lookup adding for both the VLOOKUP and HLOOKUP functions. You'll also learn how to use an array constant in the row/column num argument for the HLOOKUP and VLOOKUP functions.
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 636th installment in their series of digital spreadsheet magic tricks, you'll learn how to create a dynamic frequency table and histogram chart using defined name formulas for dynamic ranges that use the INDEX function. See other formulas that use the COUNTIF, IF and ROWS functions that help to make it fully dynamic....
Learn to take back control if social anxiety is getting in the way of your life. The first step is to take control of conversations at social functions by asking questions. This will help you to direct the conversation more and not feel like you have no control. Next, learn to always have an exit plan for any social function you might attend. Planning an exit strategy beforehand will help you to relax. Finally, be kind and loving to yourself. Don't beat yourself up and take the time to be mor...
See how to find the domain and range of a function implied by a word problem with this free video math 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 installment from Internet pedagogical superstar Salman Khan's series of free math tutor...
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 and Mr. Excel, the 23rd installment in their joint series of digital spreadsheet magic tricks, you'll learn how to use the NETWORKINGDAYS.INT, RANK.AVE, PERCENTILE.EXC, CONFIDENCE.T, T.DIST, T.DIST.RT and T.DIST.2T functions in MS Excel.
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 42nd installment in his "Highline Excel Class" series of free video Excel lessons, you'll learn ten tricks involving the LOOKUP function:
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 22nd installment in his "Highline Excel Class" series of free video Excel lessons, you'll see a lifetime savings plan using the FV and PMT functions and other formulas. See how to calculate how much you will have at retirement from a basic savings plan. Then see ...
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 use comparative operators; logical TRUE/FALSE formulas, IS functions (ISTEXT, ISNUMBER, ISBLANK, ISERROR, ISNONTEXT); IF functions (1 of 2 words in a cell, 1 of...
Are you looking for a way to make your Microsoft Excel formulas simpler, faster and more efficient? If so, you're in the right place. With this free video lesson from everyone's favorite digital spreadsheet guru, YouTube's ExcelsFun, the very first installment in his "Excel Formula Efficiency" series, you'll learn how a custom function (i.e., a user-defined function) can speed up calculations.
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.
If you use Microsoft Excel on a regular basis, odds are you work with numbers. Put those numbers to work. Statistical analysis allows you to find patterns, trends and probabilities within your data. In this MS Excel tutorial from everyone's favorite Excel guru, YouTube's ExcelsFun, the 47th installment in his "Excel Statistics" series of free video lessons, you'll learn how to use the NORMSINV function for critical values and the NORSDIST function for p-values. Compare building confidence int...
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 90th installment in their series of digital spreadsheet magic tricks, you'll learn how to write a formula that will return multiple items when there are two criteria for the data extraction. Also see an INDEX and MATCH functions formula that uses the SUMPRODUCT, COUNTIFS, IF, ROWS, INDEX, MATCH, SMALL, IF, and ROW fu...
Love Microsoft Excel? This clip contains a tip that just might induce you to. With this free video tutorial from ExcelIsFun, the 44th installment of his "YouTubers Love Excel" or YTLE series of free video MS Excel lessons, you'll learn use 4 different tricks to convert a text formula or function to a number. Also see how to convert text to numbers. Learn to love digital spreadsheets more perfectly with the tricks outlined in this free Microsoft Office how-to.
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 119th installment in their series of digital spreadsheet magic tricks, you'll learn how to determine if a particular item is in a list of items using two formulas: a ISNUMBER & MATCH function formula & a COUNTIF function formula.
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 221st installment in their series of digital spreadsheet magic tricks, you'll learn how to use the LEN function to count charters including spaces. Then see how to use the LEN, SUBSTITUTE, and TRIM function to count characters but not unwanted spaces.
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 219th installment in their series of digital spreadsheet magic tricks, you'll learn how to create a dynamic range with the OFFSET function so a macro to create a pivot table will work even when new records are added.
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 97th installment in their series of digital spreadsheet magic tricks, you'll learn how to use the AVEDEV function to measure the spread (variation) in a data set. Also see the STDEV function and learn how to measure whether a mean represents its data points fairly.
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 ...
This video shows you how to generate random numbers with decimals in Microsoft Excel.When generating random numbers you must have a lower and upper limit, so that your number will be generated between the two limits. For a number without decimals, you only have to use the "=randbetween" function. If you want to use decimals, you will have to use a different but similar function. Start by typing "=rand()". Next, you multiply this by the difference between the limits and add the lower limit. Fo...
Microsoft Excel is used to store and work on data by storing them in rows and columns in tables. You can use a macros to check if a cell is empty. To do this you have to know two short cuts. The first is the VBA Window short cut which is Alt + F11 and the other one is View Macros short cut which is Alt + F8. So open an Excel spread sheet and insert some data into a small table. Now create a macro for this tutorial. You can use and IsEmpty() functions to check if a cell is empty. Use this func...
This video tells us the method of interpreting derivatives of marginal cost and revenue. If C(x) is the cost of producing x units of a product, C(400) would be the cost to produce 400 units. Now marginal cost is the cost of producing one unit which is equal to the derivative of the cost function or C'(400) which is equal to limit of h tends to zero or lim h->0 [lim(400+h)-lim(400)]/h which is approximately equal to [lim(401)-lim(400)]/1. Similarly, if R(x) is your revenue function, marginal r...
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 534th installment in their series of digital spreadsheet magic tricks, you'll learn how to use the OR and WEEKDAY functions to create a logical true/false formula that will automatically apply formatting to dates that are either weekends or holidays.
Ken Appleby demonstrates how to mask a domain with GoDaddy. Masking a domain enables the domain owner to customize what appears in the viewer's address bar. First, log in to your GoDaddy account. Then, click on the domain manager function located on the left hand side of the page. Next, choose the domain that you would like to work with in the domain name list. Click the forwarding option. In the next window, click on the masking tab. Tick the enable masking function. Choose a masking title. ...
By watching this lyndapodcast tutorial you learn how to use the quick file function in Microsoft OneNote 2010. This feature eliminates to regroup information, so you can send notes obtained from multiple sources to a selected page of a note book. This method called quick filing lets you send the information from the program that your using directly to One Note seamlessly.
how-to Backup and Restore Your Bookmarks in Internet Explorer ClearTechInfo shows you how to backup and restore all your precious bookmarks in Internet explorer. These bookmarks can be used on another computer or can be restored onto the same computer if and when the bookmarks get erased or corrupt.
This video describes how to use excel basics formulas to do math. Shows how to create new formulas so that you can complete math functions and how many formulas in excel work. Each step is displayed step by step with an explanation on what is going on so it may be understood. Keyboard short cuts among other tips and trick to help you navigate through microsoft's excel. After this video you would be able to use excel to do a variety of functions to complete math equations.
In this three-part video tutorial, learn how to manage loans with an amortization table in Excel. The three parts of this video go over the following:
Mike Lively of Northern Kentucky University demonstrates how to create a 3D plotting program for the sinc math function. Part 1 shows how to convert a Flash Package into a Flex application. Part 2 shows how to get the sinc function running and add different textures. Create a cool interactive 3D plotter in thie Adobe Flex Builder 3 and Papervision3D tutorial.
In this video tutorial you will learn about a very powerful feature in Houdini called Copy Stamping.
If you want to create a shortcut in Mac OS X, or if you want to change the default hotkey for a function on your Mac computer, check out this quick tip from Tekzilla. It will help you learn how to access the system preferences on your Mac and gain access to the full list of keyboard shortcuts, allowing you to remove, add, or change all the hotkeys on your Mac.
In this video, learn how to alter the center of gravity within a coke can so that it leans on its side like the Leaning Tower of Pisa. Later, learn how to balance a coin on a dollar bill. Take a look at how this is done and learn a little bit about how gravity functions in the process
The autofocus functions showing up on new DSLR cameras are quite useful if you know how to use them. The Nikon D3100 is no exception, and this video will teach you about the different auto-focus modes and which ones you should use to make your pictures look as good as easily as possible.
