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  • Documenting mathematical logic in code

    - by Kiril Raychev
    Sometimes, although not often, I have to include math logic in my code. The concepts used are mostly very simple, but the resulting code is not - a lot of variables with unclear purpose, and some operations with not so obvious intent. I don't mean that the code is unreadable or unmaintainable, just that it's waaaay harder to understand than the actual math problem. I try to comment the parts which are hardest to understand, but there is the same problem as in just coding them - text does not have the expressive power of math. I am looking for a more efficient and easy to understand way of explaining the logic behind some of the complex code, preferably in the code itself. I have considered TeX - writing the documentation and generating it separately from the code. But then I'd have to learn TeX, and the documentation will not be in the code itself. Another thing I thought of is taking a picture of the mathematical notations, equations and diagrams written on paper/whiteboard, and including it in javadoc. Is there a simpler and clearer way? P.S. Giving descriptive names(timeOfFirstEvent instead of t1) to the variables actually makes the code more verbose and even harder too read.

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  • Layout of mathematical views (iOS)

    - by William Jockusch
    I am trying to figure out the right way to encapsulate graphical information about mathematical objects. It is not simple. For example, a matrix can include square brackets around its entries, or not. Some things carry down to sub-objects -- for example, a matrix might track the font size to be used by its entries. Similarly, the font color and the background color would carry down to the entries. Other things do not carry down. For example, the entries of the matrix do not need to know whether or not the matrix has those square brackets. Based on all of the above, I need to calculate sizes for everything, then frames. All of this can depend on the properties stored above. The size of a matrix depends on the sizes of its entries, and also on whether or not it has those brackets. What I am having a hard time with is not the individual ways to calculate sensible frames for this or that. It is the overall organizational structure of the whole thing. How can I keep track of it all without going crazy. One particular obstacle is worth mentioning -- for reasons I don't want to go into here, I need to calculate the sizes and frames for everything before I instantiate any actual views. So, for example, if I have a Matrix object, I need to calculate its size before I make a MatrixView. If I have an equation, I need to calculate the size of the view for the equation before I create the actual view. So I clearly need separate objects for those calculations. But I can't figure out a sensible class structure for those objects. If I put them all into a single class, I get some advantages because copying then becomes easy. But I also end up with a bloated class that contains info that is irrelevant for some objects -- such as whether or not to include those brackets around the matrix. But if I use a lot of different classes, copying properties becomes a real pain. If it matters, this is all in Objective C, for an iOS environment. Any pointers would be greatly appreciated.

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  • How do you use kate? Tips/Tricks/Workflow

    - by Roman A. Taycher
    We all seen a bunch of these? Mostly for IDE's but also for vim and emacs. Kate is (only) a text editor (an awesome one) but it has a ton of options plus a number of plugins, so its hard to know all of it well. How do use the Kate text editor? Please share your workflow and help me and others learn some of the cool tricks you use. I'll start I use the built in terminal a lot opening files quickly, and using it as an enhanced haskell repl with ghci (since ghci doesn't allow you all to just put in all kinds of haskell code). Also use split views to quickly compare files (especially different versions of the same file). Also the auto-complete maybe simple(more use for saving typing time then remembering functions) but it works really well for that. Also if You highlight something and hit a start [/{/( it puts it in between brackets rather then replacing it with a bracket(why the hell do a lot of IDEs not have this feature).

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  • CodeRush Tricks of the Trade

    - by dr. evil
    I was using CodeRush quite while ago and now I'm planning to use it again. I've install the trial but I forgot all cool features except Alt + Home (drop a marker). And when you don't know some cool tricks it's really like burning money (since it's not cheap for personal use) What do you like about it? What are your best features? My best feature is marker: Alt + Home (and use escape to go back) P.S Dear Devxpress, if you think I helped you by asking this question I can accept some donations, a free license of CodeRush would be nice! Currently What I like most ps/pi etc. shortcut to create properties cc to create constructors pressing tab to navigate between the references F12 to find references in new cool window Ctrl + Shift + . for recent files Ctrl + Shift + Q for jumping to any function / class fe/fi for "for loops"

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  • Tips and Tricks in SSIS Presentation

    Here is a Live Meeting presentation I did for the Polish SQL Server User Group on Tips and Tricks I use when out and about using SSIS (It is in English).  It lasts about an hour and you can either watch it online or download the wmv to view later   Tips and Tricks in SSIS

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  • Six Cool PHP Tricks You May Not Know

    <b>PHP Builder:</b> "Over the years I've come across some useful tricks in PHP that are not obvious, but are worth mentioning. This is not meant to be a comprehensive list of all the useful tricks that you can do with PHP."

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  • 30 Great Photoshop Tips and Tricks to Help Your Computer Graphic Skills

    - by Lori Kaufman
    Photoshop is a powerful, but complex, graphics program that can be difficult to learn and frustrating to use. We have published many articles about tips and tricks for using Photoshop and how to fix annoying issues you may encounter. This article compiles 30 of the best tips and tricks we have documented to help you get the most out of Photoshop. How to Make the Kindle Fire Silk Browser *Actually* Fast! Amazon’s New Kindle Fire Tablet: the How-To Geek Review HTG Explains: How Hackers Take Over Web Sites with SQL Injection / DDoS

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  • Visual Studio Tips and Tricks

    - by deadlydog
    Just found a few websites that show some Visual Studio tips that I haven't seen before, so I thought I'd share: 1 - Tips and Tricks for the Visual Studio .NET IDE 2 - Essential Visual Studio Tips & Tricks that Every Developer Should Know 3 - Channel 9's Visual Studio Toolbox - weekly series dedicated to showing all the cool stuff that Visual Studio can do and how to be more productive with it.

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  • C# Programming Tips and Tricks

    Volume 2 of tips and tricks that touches on tips related to some of the new features of C# 4.0 along with other beneficial tips and tricks. In addition, it mentions some tools that are worth knowing as well.

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  • Stupid Geek Tricks: Compare Your Browser’s Memory Usage with Google Chrome

    - by The Geek
    Ever tried to figure out exactly how much memory Google Chrome or Internet Explorer is using? Since they each show up a bunch of times in Task Manager, it’s not so easy! Here’s the quick and easy way to compare them. Both Chrome and IE use multiple processes to isolate tabs from each other, to make sure that one tab doesn’t kill the whole browser. Firefox, on the other hand, just uses a single process for everything. Rather than pulling out a calculator and adding them all up, you can just open up Google Chrome, and type in about:memory into the location bar to see a full list of each browser’s memory usage.   On my test system with 6 GB of system RAM, I’m running the Development channel version of Chrome, and I’ve got about 40 different tabs open, which is why the memory usage is so high. Firefox has 8 tabs open, and IE is enjoying being opened for the first time in forever. Want to help cut down on memory usage and keep your Chrome browser running fast? Disable all unnecessary extensions, and then make sure you disable any plug-ins that you don’t need either. Similar Articles Productive Geek Tips Stupid Geek Tricks: Duplicate a Tab with a Shortcut Key in Chrome or FirefoxStupid Geek Tricks: Shrink the XP Volume ControlStupid Geek Tricks: Tile or Cascade Multiple Windows in Windows 7Fix for Firefox memory leak on WindowsHow to Purge Memory in Google Chrome TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 Download Free MP3s from Amazon Awe inspiring, inter-galactic theme (Win 7) Case Study – How to Optimize Popular Wordpress Sites Restore Hidden Updates in Windows 7 & Vista Iceland an Insurance Job? Find Downloads and Add-ins for Outlook

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  • Asp.net tips and tricks

    - by ybbest
    Asp.net tips and tricks Here is a summary of articles I found very useful over the years while I am working on asp.net TRULY Understanding View state http://weblogs.asp.net/infinitiesloop/archive/2006/08/03/Truly-Understanding-Viewstate.aspx TRULY Understanding Dynamic Controls http://weblogs.asp.net/infinitiesloop/archive/2006/08/25/TRULY-Understanding-Dynamic-Controls-_2800_Part-1_2900_.aspx ASP.Net 2.0 – Master Pages: Tips, Tricks, and Traps http://odetocode.com/articles/450.aspx ASP.NET Tip – Use The Label Control Correctly http://haacked.com/archive/2007/02/15/asp.net_tip_-_use_the_label_control_correctly.aspx Asp.net httphandlers http://www.michaelflanakin.com/Articles/NET/NET1x/ImplementingHTTPHandlers/tabid/173/Default.aspx http://support.microsoft.com/default.aspx?scid=kb;EN-US;308001 http://msdn.microsoft.com/en-us/library/ms972974.aspx Asp.net ajax http://encosia.com/ ASP.NET 2.0 Tips, Tricks, Recipes and Gotchas http://weblogs.asp.net/scottgu/pages/ASP.NET-2.0-Tips_2C00_-Tricks_2C00_-Recipes-and-Gotchas.aspx Mastering Page-UserControl Communication http://www.codeproject.com/KB/user-controls/Page_UserControl.aspx Comparing Web Site Projects and Web Application Projects Web Deployment Projects .NET Radio Show http://www.dotnetrocks.com/ Herdingcode http://herdingcode.com/ Clean Code talk http://www.objectmentor.com/videos/video_index.html .NET Video Show http://www.dnrtv.com/ .Net User group http://chicagoalt.net/home http://exposureroom.com/members/RIAViewMirror.aspx/assets/ FAQ Why should you remove unnecessary C# using directives? http://stackoverflow.com/questions/136278/why-should-you-remove-unnecessary-c-using-directives http://stackoverflow.com/questions/2009471/what-is-the-benefit-of-removing-redundant-imports-in-vb-net-or-using-in-c-file http://codeclimber.net.nz/archive/2009/12/30/best-of-2009-the-5-most-popular-posts.aspx

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  • WiX tricks and best practices

    - by Si
    We've been using WiX 3 for a while now, and despite the usual gripes about ease of use, it's going reasonably well. What I'm looking for is useful advice regarding: Setting up a WiX project (layout, references, file patterns) Integrating WiX into solutions, and build/release processes Configuring installers for new installations and upgrades Also interested in any good WiX hacks you'd like to share, thanks!

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  • EF4 performance tips and tricks

    - by Will
    I've gotten to that point in one of my projects, and haven't found much information out there. So if you've got some pointers for improving performance in the new Entity Framework 4, please let us know!

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  • WiX tricks and tips

    - by Si
    We've been using WiX 3 for a while now, and despite the usual gripes about ease of use, it's going reasonably well. What I'm looking for is useful advice regarding: Setting up a WiX project (layout, references, file patterns) Integrating WiX into solutions, and build/release processes Configuring installers for new installations and upgrades Also interested in any good WiX hacks you'd like to share, thanks!

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  • ASP.NET MVC Best Practices, Tips and Tricks

    - by Koistya Navin
    Please, share your ideas which could serve as best practices or guidelines for creating ASP.NET MVC web applications. These ideas and/or coding samples should be relevant to ASP.NET MVC application creation itself and not to TDD or similar practices. Other resources: ASP.NET MVC Best Practices (Part 1) by Kazi Manzur Rashid ASP.NET MVC Best Practices (Part 2) by Kazi Manzur Rashid

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  • jQuery Tips and Tricks

    - by roosteronacid
    Miscellaneous Creating an HTML Element and keeping a reference, Checking if an element exists, Writing your own selectors by Andreas Grech The data function - bind data to elements by TenebrousX The noConflict function - Freeing up the $ variable by Oli Check the index of an element in a collection by redsquare The jQuery metadata plug-in by kRON Live event handlers by TM Isolate the $ variable in noConflict mode by nickf Replace anonymous functions with named functions by ken Microsoft AJAX framework and jQuery bridge by Slace jQuery tutorials by egyamado Remove elements from a collection and preserve chainability by roosteronacid Declare $this at the beginning of anonymous functions by Ben FireBug lite, Hotbox plug-in, tell when an image has been loaded and Google CDN by Colour Blend Judicious use of third-party jQuery scripts by harriyott The each function by Jan Zich Form Extensions plug-in by Chris S Syntax No-conflict mode by roosteronacid Shorthand for the ready-event by roosteronacid Line breaks and chainability by roosteronacid Nesting filters by Nathan Long Cache a collection and execute commands on the same line by roosteronacid Contains selector by roosteronacid [Defining properties at element creation][26] by roosteronacid Optimization Optimize performance of complex selectors by roosteronacid The context parameter by lupefiasco Save and reuse searches by Nathan Long

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  • Android Development Tips, Tricks & Gotchas

    - by Mat Nadrofsky
    I'm starting down the road of Android Development. At this point I'm looking for some insight from other developers who have been doing 'droid development and have some experience to share with someone who is just starting out. This can be anything from API to AVM to IDE. Any unexpected things come up while building your apps? Any tips for project layout or organization that help facilitate the deployment process to the Android AppStore? Any patterns which specifically helped in a particular situation? Even links to great blogs or sample apps and resources beyond those which you can grab from Google Code would be appreciated.

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  • Taming the malloc/free beast -- tips & tricks

    - by roufamatic
    I've been using C on some projects for a master's degree but have never built production software with it. (.NET & Javascript are my bread and butter.) Obviously, the need to free() memory that you malloc() is critical in C. This is fine, well and good if you can do both in one routine. But as programs grow, and structs deepen, keeping track of what's been malloc'd where and what's appropriate to free gets harder and harder. I've looked around on the interwebs and only found a few generic recommendations for this. What I suspect is that some of you long-time C coders have come up with your own patterns and practices to simplify this process and keep the evil in front of you. So: how do you recommend structuring your C programs to keep dynamic allocations from becoming memory leaks?

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  • Javascript tricks

    - by ayush
    What does the following code mean - <a href="javacsript:;" onClick="addItem(160)">some link</a> My basic doubt is which script is run when we click on the link

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  • .Net Compact Framework Tips, Tricks, and Gotchas

    - by Mat Nadrofsky
    Hey everyone, We work extensively in the .Net Compact Framework and Windows Mobile. I've seen plenty of questions come up regarding specifics to development of ASP.Net apps or other .Net based desktop apps but nothing CF specific. Anyone else a mobile developer out there that can share some things to start doing, stop doing, and avoid doing when developing in the Compact Framework?

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  • Become a Linux Terminal Power User With These 8 Tricks

    - by Chris Hoffman
    There’s more to using the Linux terminal than just typing commands into it. Learn these basic tricks and you’ll be well on your way to mastering the Bash shell, used by default on most Linux distributions. This one’s for the less experienced users – I’m sure that many of you advanced users out there already know all these tricks. Still, take a look – maybe there’s something you missed along the way. How to Own Your Own Website (Even If You Can’t Build One) Pt 2 How to Own Your Own Website (Even If You Can’t Build One) Pt 1 What’s the Difference Between Sleep and Hibernate in Windows?

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  • Google I/O 2010 - Tips and tricks for Google Earth API and KML

    Google I/O 2010 - Tips and tricks for Google Earth API and KML Google I/O 2010 - Mapping in 3D: Tips and tricks for Google Earth API and KML Geo 201 Josh Livni, Mano Marks Google Earth and the Earth API can handle a tremendous amount of data. But you always have more. We will talk about integrating large datasets efficiently, coding for optimal performance, and taking advantage of advanced features in KML and the Earth API. For all I/O 2010 sessions, please go to code.google.com From: GoogleDevelopers Views: 14 0 ratings Time: 01:01:18 More in Science & Technology

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