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  • How to search unique dynamic data in a sheet and then copy relevent row in diffrent sheet?

    - by Hemant
    I am getting data from internet (DataFrom Web) In sheet1. Then I disperse that data in to three sheets based on three unique text. Like a,b and c. Rows are copied to sheet a,b and c sheets depending on text (a,b,c) they have. All the rows have one unique text (like url) by which they can be searched. I have added static data corresponding to the row. The problem is when ever internet data is changed (row addition/substitution or randomized). My static data loses its connection with the original row for which it was written. I want to search the data based on one unique key and put it to its original place where it used to be with static data.

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  • How to handle the different frame rate on different devices?

    - by Fenwick
    I am not quite sure how frame per second works on a web page. I have a Canvas game that involves in moving an image from point A to B, and measuring the time elapsed. The code can be as simple as: var timeStamp = Date.now(); function update(){ obj.y += obj.speed; text = "Time: "+ (Date.now() - timeStamp) + "ms"; } The function update() is called every frame. The problem is that the time elapsed is different from device to device. It is pretty short on my PC, but get longer on my iPad, and is much longer on my cell phone. I thought it is because the FPS is smaller on mobile devices, so instead of calling update() every frame, I call it every 1ms by using a setInterval. But this does not solve the problem. In my understanding, the function for setInterval is invoked based on the increment in system time, other than frame rate, so it should fix the problem. Am I missing anything here? If the setInterval function is called based on FPS, is there any way to get around with the FPS difference across devices? On a side note, I have sort of a "water simulator" on the same canvas. It involves in redrawing about 60 objects which can be 600x600 pixels for every frame, so it could be a frame rate killer. I am using Phaser.js but not really using much of its functionalities, if that helps.

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  • What's Up for "We're Almost There" Wednesday

    - by Oracle OpenWorld Blog Team
     By Karen Shamban Wow - can't believe we're looking at Wednesday already!  Still so much to do, places to go, people to talk with. The last day for the Exhibition Halls is Wednesday, so be sure to spend time there if you haven't done so already. And don't forget (as if you would) that the famed Oracle Appreciation Event is Wednesday night on Treasure Island.  Here are just some of the big things happening Wednesday, October 3: Registration Moscone West, Moscone South, Hilton San Francisco, Westin St. Francis, Hotel Nikko, 7:00 a.m. - 6:30 p.m. Oracle OpenWorld Keynote featuring Oracle executives John Fowler, Edward Screven, and Juan Loiaza Moscone North Hall D, 8:00 a.m. - 9:45 a.m. Exhibition Halls Open Moscone South and Moscone West, 9:45 a.m. - 4:00 p.m. General Sessions Various times and locations Sessions, Demos, Labs Various times and locations Oracle Appreciation Event, featuring Pearl Jam, with Kings of Leon and X Treasure Island, 7:30 p.m. - 1:00 a.m. (note: must have approved wristband to attend) After what is sure to be a late night, it's good to know that the Thursday keynotes don't start until 9:00 a.m. They're going to be really great, so you won't want to miss them!

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  • Updating windows xp hard drive controller from ubuntu live disk

    - by Joel
    The problem: When booting, I get a blue screen shortly after the Windows XP logo splash screen. The error code is 7b, and the second hex number is 0xC0000034. Based on this link (item 7) it appears the driver should be updated. Oddly, I made no changes to the drivers recently. I suspect it was something in a windows update or the newest upgrade of my antivirus (eset). But I digress. The BSOD makes me unable to boot into Windows at all, so I can't update the driver from there. I've run various bios-level diagnostics (including full surface scan) and the hd looks good. I'm also able to boot to an old ubuntu disk and read files from the hd. The question: Based on the above, it appears that I need to update the Windows hard drive controller from the ubuntu live disk. How do I do that?

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  • Windows Web Server in DataCenter Authenticate with AD in Office

    - by Viper Venom
    Hi, We would like to have put a File Server in DataCentre to allow user to upload/download files when they are home. Since we have hundreds of users and would like to let the user to authenticate with the existing AD in our office. Basically, I will setup the IIS server to allow users to list various directories in the File Server based on their user group. For example, Group A will have list the D:\Files\A and the Group B will have list the D:\Files\B ...etc. After some initial study, I found that the PPTP based Site to Site VPN might fit our need to do the authentication part but I still don't have any idea on how to let them upload files to the server. Is there any suggestions such as any better option to do this (either authentication or upload part) or any area I need to be careful of? Thank you in advance.

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  • Disable/configure Back and Forward through mouse wheel in Internet Explorer

    - by Subtwo
    I have a problem with Internet Explorer (version 7 on Windows XP). Sometimes (not always) when you use the mouse wheel to scroll a page up/down it instead chooses to go back or forth in the web browsing history. This behavior is the same as when you hold the shift-key simultaneously using the wheel. My guess is that Internet Explorer somehow gets misled by something and thinks that I'm actually pressing shift. This is in turn maybe an artifact of the fact that this particular session is a remote-desktop session originating from Linux (Ubuntu). Needless to say the problem can be quite irritating and the alternative of completely turning off the wheel functionality doesn't seem like an option as other applications would suffer greatly from this. Anyway back to my question(s): Is it possible to map the shift+wheel to a simple wheel event for Internet Explorer? Is it possible to disable the shift+wheel event for Internet Explorer? Any suggestions are greatly appreciated.

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  • Looking for MRP software

    - by Samuel
    I am looking for MRP software. All the stuff I have found so far looks like it's from the 90's and has that very old person business feel. I want something fresh and new. I would prefer an open source, web based solution. PHP/MySQL would be best but not required. I couldn't find anything that was web based that didn't make me want to cry. Superuser doesn't have a lot of eye candy but it still looks great. I am the web developer at my company so if I don't find anything I will be making it my self (well, try to at least).

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  • Oracle Applications Cloud Release 8 Customization: Your User Interface, Your Text

    - by ultan o'broin
    Introducing the User Interface Text Editor In Oracle Applications Cloud Release 8, there’s an addition to the customization tool set, called the User Interface Text Editor  (UITE). When signed in with an application administrator role, users launch this new editing feature from the Navigator's Tools > Customization > User Interface Text menu option. See how the editor is in there with other customization tools? User Interface Text Editor is launched from the Navigator Customization menu Applications customers need a way to make changes to the text that appears in the UI, without having to initiate an IT project. Business users can now easily change labels on fields, for example. Using a composer and activated sandbox, these users can take advantage of the Oracle Metadata Services (MDS), add a key to a text resource bundle, and then type in their preferred label and its description (as a best practice for further work, I’d recommend always completing that description). Changing a simplified UI field label using Oracle Composer In Release 8, the UITE enables business users to easily change UI text on a much wider basis. As with composers, the UITE requires an activated sandbox where users can make their changes safely, before committing them for others to see. The UITE is used for editing UI text that comes from Oracle ADF resource bundles or from the Message Dictionary (or FND_MESSAGE_% tables, if you’re old enough to remember such things). Functionally, the Message Dictionary is used for the text that appears in business rule-type error, warning or information messages, or as a text source when ADF resource bundles cannot be used. In the UITE, these Message Dictionary texts are referred to as Multi-part Validation Messages.   If the text comes from ADF resource bundles, then it’s categorized as User Interface Text in the UITE. This category refers to the text that appears in embedded help in the UI or in simple error, warning, confirmation, or information messages. The embedded help types used in the application are explained in an Oracle Fusion Applications User Experience (UX) design pattern set. The message types have a UX design pattern set too. Using UITE  The UITE enables users to search and replace text in UI strings using case sensitive options, as well as by type. Users select singular and plural options for text changes, should they apply. Searching and replacing text in the UITE The UITE also provides users with a way to preview and manage changes on an exclusion basis, before committing to the final result. There might, for example, be situations where a phrase or word needs to remain different from how it’s generally used in the application, depending on the context. Previewing replacement text changes. Changes can be excluded where required. Multi-Part Messages The Message Dictionary table architecture has been inherited from Oracle E-Business Suite days. However, there are important differences in the Oracle Applications Cloud version, notably the additional message text components, as explained in the UX Design Patterns. Message Dictionary text has a broad range of uses as indicated, and it can also be reserved for internal application use, for use by PL/SQL and C programs, and so on. Message Dictionary text may even concatenate together at run time, where required. The UITE handles the flexibility of such text architecture by enabling users to drill down on each message and see how it’s constructed in total. That way, users can ensure that any text changes being made are consistent throughout the different message parts. Multi-part (Message Dictionary) message components in the UITE Message Dictionary messages may also use supportability-related numbers, the ones that appear appended to the message text in the application’s UI. However, should you have the requirement to remove these numbers from users' view, the UITE is not the tool for the job. Instead, see my blog about using the Manage Messages UI.

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  • Project Server 2010 site creation - the database connection string is not available

    - by Brandon Montgomery
    I am trying to get Project Server 2010 up and running on a Win Server 2008 box. I've got Sharepoint 2010 installed and Project Server 2010 installed. I open SharePoint Central Administration, then I go to Manage Service Applications Project Server Service Application. It looks like there is a site under the "Sharepoint - 80" section, but the Status says "Failed - see the Application event Log". When I click on the site and select "Retry" I get the same thing. In the event viewer, I see an error with SharePoint Foundation Search as the Source - it reads: Could not create a database session. Context: Application '276504a6-93b1-4c1f-a900-fd6ed9d5c117' Details: The database connection string is not available. (0xc0041228) How can I fix this? Is there some configuration I missed?

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  • Is there a way to automate testing for a GNS3 network topology?

    - by Chedy2149
    I'm working on an MPLS backbone topology using GNS3, this topology includes configuration of several networking technologies such as IPv6, BGP, OSPF, IPv6 to IPv4 dynamic tunneling, MPLS based VPNs, MPLS based traffic engineering... So I'm a beginner with basic knowledge in networking (Ipv4 addressing, basic routing and switching) and I can't just easly test if my topology works or not, moreover fiddling with configuration I've noticed that sometimes when getting MPLS config right and missing BGP config all my topology is messed up. Given that I use Cisco 7200 series routers, is there any way to build a test harness for my topology in order to guarentee correctness with a single push button automated process?

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  • auto tabbing not working on iphone

    - by Sarita
    I have problem with auto tabbing on Iphone or android. This auto tabbing code work perfectly on each browser of pc but not on mobile. please help me. its urgent. $(document).ready(function() { WireAutoTab('<%= PartOne.ClientID %', '<%= PartTwo.ClientID %', 3); WireAutoTab('<%= PartTwo.ClientID %', '<%= PartThree.ClientID %', 2); }); function WireAutoTab(CurrentElementID, NextElementID, FieldLength) { //Get a reference to the two elements in the tab sequence. var CurrentElement = $('#' + CurrentElementID); var NextElement = $('#' + NextElementID); CurrentElement.keyup(function(e) { //Retrieve which key was pressed. var KeyID = (window.event) ? event.keyCode : e.keyCode; //If the user has filled the textbox to the given length and //the user just pressed a number or letter, then move the //cursor to the next element in the tab sequence. if (CurrentElement.val().length >= FieldLength && ((KeyID >= 48 && KeyID <= 90) || (KeyID >= 96 && KeyID <= 105))) NextElement.focus(); }); }

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  • Designing a system with different business rules for different customers

    - by user1595846
    My company is rewriting our proprietary business application. The current architecture is poorly done and inflexible. It is coded more procedural oriented as opposed to object oriented. It has become difficult to maintain. Our system is a web application written in .Net Webforms. I am considering ASP.Net MVC for the rewrite. We intend to rewrite it with a good, solid architecture with the goal of maintainability and reusable classes for some of our other systems and services. We would also like the system to be customizable for different customers in the event that we market the system. I am considering redesigning the system based on the layered architecture (Presentation, Business, Data Access layers) described in the Microsoft Patterns and Practices Application Architecture Guide. http://msdn.microsoft.com/en-us/library/ff650706.aspx Hopefully this isn't too open ended, but how would you recommend allowing for different business logic/rules for different customers? I'm aware of Windows Workflow Foundation, but from what I've read about it, it seems many business rules could be too complicated to handle there. Also, Can anyone point me to where I can download an example of a .net solution that is based on the Application Architecture Guide? I have already downloaded the Layered Architecture Solution Guidance and the Expense Sample on codeplex. I was looking for something a bit larger and more robust that I could step through the code and see how it works. If you feel there are better architectures to base our redesign on please feel free to share. I appreciate your help!

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  • My Obligatory IPad Post

    - by mark.wilcox
    I've had my IPad for about a week now. So I thought I'd write some thoughts down based on my initial experiences. Here are my initial take-aways: 1 - Netflix OnDemand - I'm a movie junkie. I'm now more apt to just start a movie as background sound for my workday (I telecommute - so except for the occasional bark from my dog, it's awfully quiet here if I don't have something going). 2 - The Email Client is really nice and I'm as fast or faster typing when I have the wireless keyboard engaged. Even with onscreen keyboard - I'm already close to 75% of desktop speed 3 - The battery life is incredible - I think this is the first case where a mobile device actually under-promised on battery 4 - It totally has killed the notion of using a normal PC for my wife and mother-in-law - neither of which had wanted an iPhone/iPod Touch or really any Apple device until they got to play with my iPad. The concept of - instant on, easy to hold and touch-based navigation has them hooked. Heck, it has me hooked. My ultimate goal is to be able to have it at least replace the need to take my netbook with me on the road. I haven't had a chance to complete my testing on that front yet - between work, my wife traveling (for a change) and now my wife home sick - I haven't had time to just play with it. But so far my only regret - that I haven't already bought two more for everyone else in my family who wants to use mine. Posted via email from Virtual Identity Dialogue

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  • Running a webserver behind a firewall, is it secure?

    - by i.am.intern
    Currently we have a Linux-based firewall which NAT-ing our public IP address to give internet access to our staff's PCs and a Windows Server 2003 for internal filesharing. I want to host Redmine/SVN (a bugtracker) internally behind this firewall using a Linux server. This webserver will be accessed by our clients externally so they can post bug reports. This means that I have to open port 80 & 22 at the firewall to give access to the webserver and me to SSH it from home. However, let's say I'm using password-based SSH for the webserver and somebody cracked it. Does that mean the cracker could ping and access other servers and PCs in the network?

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  • Process for Securing Web Sites and Applications

    - by Aamir Hasan
    The following quick-start guide provides a detailed overview of how to configure security for IIS 6.0. Reduce the Attack Surface of the Web Server 1.       Enable only essential Windows Server 2003 components and services. 2.       Enable only essential IIS 6.0 components and services. 3.       Enable only essential Web service extensions. 4.       Enable only essential Multipurpose Internet Mail Extensions (MIME) types. 5.       Configure Windows Server 2003 security settings. Prevent Unauthorized Access to Web Sites and Applications 1.       Store content on a dedicated disk volume. 2.       Set IIS Web site permissions. 3.       Set IP address and domain name restrictions. 4.       Set the NTFS file system permissions. Isolate Web Sites and Applications 1.       Evaluate the effects of impersonation on application compatibility: 2·         Identify the impersonation behavior for ASP applications. 3·         Select the impersonation behavior for ASP.NET applications. 4.       Configure Web sites and applications for isolation. Configure User Authentication 1.       Configure Web site authentication. 2·         Select the Web site authentication method. 3·         Configure the Web site authentication method. 4.       Configure File Transfer Protocol (FTP) site authentication. Encrypt Confidential Data Exchanged with Clients 1.       Use Secure Sockets Layer (SSL) to encrypt confidential data. 2.       Use Internet Protocol security (IPSec) or virtual private network (VPN) with remote administration. Maintain Web Site and Application Security 1.       Obtain and apply current security patches. 2.       Enable Windows Server 2003 security logs. 3.       Enable file access auditing for Web site content. 4.       Configure IIS logs. 5.       Review security policies, processes, and procedures.  Note:To secure the Web sites and applications in a Web farm, use the process described in this chapter to configure security for each server in the Web farm. Link:http://www.studentacad.com/post/2010/04/28/Process-for-Securing-Web-Sites-and-Applications.aspx

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  • Can't ssh from Ubuntu to RHEL or CentOS

    - by Alex N
    I am trying to setup publickey based authenitcation for 2 different boxes. One RHEL another on e is CentOS. I am having same issue with both where ssh fails and falls back to password based authentication. Error that seems to be causing this is quite obscure: debug1: Unspecified GSS failure. Minor code may provide more information Credentials cache file '/tmp/krb5cc_1000' not found Both boxes are completely unrelated. I have my public key in .ssh/authorized_keys file on both boxes, all permissions are checked and good(700 for .ssh and 600 for internals) I have bunch of other servers that are running on various flavors(Gentoo, Fedora, FreeBSD etc.) and publickey ssh works just fine, but CentOS and RHEL giving me this for some reason :( Anyone experienced this before? I am not even sure how to further analyze this issue :(

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  • What is the value of checking in failing unit tests?

    - by Adam W.
    While there are ways of keeping unit tests from being executed, what is the value of checking in failing unit tests? I will use a simple example: Case Sensitivity. The current code is case sensitive. A valid input into the method is "Cat" and it would return an enum of Animal.Cat. However, the desired functionality of the method should not be case sensitive. So if the method described was passed "cat" it could possibly return something like Animal.Null instead of Animal.Cat and the unit test would fail. Though a simple code change would make this work, a more complex issue may take weeks to fix, but identifying the bug with a unit test could be a less complex task. The application currently being analyzed has 4 years of code that "works". However, recent discussions regarding unit tests have found flaws in the code. Some just need explicit implementation documentation (ex. case sensitive or not), or code that does not execute the bug based on how it is currently called. But unit tests can be created executing specific scenarios that will cause the bug to be seen and are valid inputs. What is the value of checking in unit tests that exercise the bug until someone can get around to fixing the code? Should this unit test be flagged with ignore, priority, category etc, to determine whether a build was successful based on tests executed? Eventually the unit test should be created to execute the code once someone fixes it. On one hand it shows that identified bugs have not been fixed. On the other, there could be hundreds of failed unit tests showing up in the logs and weeding through the ones that should fail vs. failures due to a code check-in would be difficult to find.

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  • What is a Windows text editor that will make it easy for me to have four text files open onscreen at once?

    - by Ascendant
    When brainstorming / planning I like to have four text files open onscreen at once: One for notes/stream of consciousness, one for action items to follow up on, one for a rough outline, etc.... What I'm looking for is an easy way to create / save four text files in this manner in Windows. Most importantly, I need the lines to wrap based on the width of the actual window itself. Not based on a ruler or document size (a la Word or WordPad) and not wrapping "manually only" (like Windows' built in Notepad application.) Also, I need the windows to have no, or at least, little, fluff at the top of each document (menubars, ribbons, etc.) On my Mac, I've found that the built-in TextEdit application is almost perfect for this. There's no header or ribbon taking up space for each document, and lines wrap when they hit the end of the window. I haven't had any luck finding a Windows application that works the same way.

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  • Emulate Historical Figures i.e. Einstein - Is this possible using linguistic logic for my http://www.ustimeline.com Education System

    - by Johnnylight
    After hearing about the success of IBM's Watson I started thinking perhaps emulating human language is now possible? My goal is to create Virtual Historical characters to represent the main characters in my Adventur-Cation The Great American Adventure program such as Einstein or Crazy Horse. The goal is to build an intelligent system capable of indexing the internet and storing the data using a schema using modern knowledge on linguistic theory (phonemes, morphemes, syntax) to build a system capable to returning a semantically sound response very similar to the response made by the same person if still alive today. The goal would be to use the same engine/system for all characters. Each characters would have their own digital representation and voice, and would organize data differently based on tags/keywords stored about the individual. Imagine a Max Headroom Einstein. Based on the success of Watson, I believe something like this may now be possible. Would be an interesting way to study history and would be a vehicle of entertainment as well. Can anyone confirm if this has already been attempted? Is anyone interested in exploring this using Cognitive Science, Psychology, Artificial Intelligence, Historical data captured on the internet, and Linguistic theory?

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  • Artists and music - i need help to decide wich cms to use.

    - by infty
    A friend has asked me to build a site with the following options: staff members must be able to add new music and artists to the page a gallery must be provided - it is also good if each artist has the ability to have his/her own, smaller, gallery users must be able to vote for artists users must be able to alter in discussions (forums or comments sections) staff members must be able to blog staff members must be able to write articles I did a small project where i actually implementet all of these features, but i want to use an existing content managment system for all of these features so that future devolpers can, hopefully, more easy extend the website. And also, so that i dont have to provide to much documentation. I have never developed a website using an external cms like drupal or wordpress and after seeing hours of tutorial videos of both systems, i still cant make up my mind on wheter i should : a) use Drupal 7 b) use Wordpress 3 c) create my own cms I can only imagine that staff members would also want to create content using iphone or android based mobile devices. But this is not a required feature. Can someone, with experience, please tell me about their experiences with bigger projects like this? The site will approx. have a total of 400 000 - 500 000 visitors (not daily visitors, based on numbers from last year in a period of 4 months)

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  • Sharing password-protected videos on social media

    - by PaulJ
    We are developing a site where users will be able to watch and download videos that they've recorded of themselves in a public event. The videos will be password protected, and will be available only to users who have paid for them at the event... ...But on the other hand, we also want users to share those videos on social media, since they will be an attractive publicity for our events. Having people log into our site with their password, download the video and then re-upload it to Youtube/Facebook will be too cumbersome, and I suspect that few users will be willing to do that. So the obvious alternative is to have one of those convenient "share" buttons, but the problem with that approach will be that: The video will be physically hosted (and linked to) in our site. What happens if those videos go viral and our bandwidth cost explodes? The video is password protected. The solution I've thought of for this is: Upload the user's video to our (password-protected site) and to Youtube at the same time, as an unlisted video. The user can access our site with his password and download his video (to watch on his TV or whatever). If the users hits the "share" button, we show him the Youtube link... and we turn the video into a listed one. This seems in line with the ideas in Using YouTube as a CDN, and there didn't seem to be any objections in that question. I'm posting this just to confirm that my idea doesn't violate any Youtube TOS, and also to see if it is a good one or there might be better alternatives.

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  • Is Page-Loading Time Relevant?

    - by doug
    Take this (ServerFault) page for instance. It has about 20 elements. When the last of these has loaded, the page is deemed "loaded"--but not before. This is certainly the protocol used by our testing service (which is among the small group of well-known vendors that offer that sort of service). Obviously this method is based on a clear, definite endpoint--therefore it's easy to apply w/ concomitant reliability. I think it's also the metric used by the popular Firefox plugin, 'YSlow.' For my employer's website, nearly always the last-to-load items are tracking code, tracking pixels, etc., so from the user's point of view--their perception--the page was "loaded" well before it had actually loaded based on the criterion used by our testing service (15-20% is a rough estimate). I'm sure i'm not the first person to consider this nor the first to wonder if it is causing micro-optimization while ignoring overall system-level, or user-perceived performance. So my question is, are there are other more practical (yet still reasonably precise) measures of page loading time?

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  • Sorting for 2D Drawing

    - by Nexian
    okie, looked through quite a few similar questions but still feel the need to ask mine specifically (I know, crazy). Anyhoo: I am drawing a game in 2D (isometric) My objects have their own arrays. (i.e. Tiles[], Objects[], Particles[], etc) I want to have a draw[] array to hold anything that will be drawn. Because it is 2D, I assume I must prioritise depth over any other sorting or things will look weird. My game is turn based so Tiles and Objects won't be changing position every frame. However, Particles probably will. So I am thinking I can populate the draw[] array (probably a vector?) with what is on-screen and have it add/remove object, tile & particle references when I pan the screen or when a tile or object is specifically moved. No idea how often I'm going to have to update for particles right now. I want to do this because my game may have many thousands of objects and I want to iterate through as few as possible when drawing. I plan to give each element a depth value to sort by. So, my questions: Does the above method sound like a good way to deal with the actual drawing? What is the most efficient way to sort a vector? Most of the time it wont require efficiency. But for panning the screen it will. And I imagine if I have many particles on screen moving across multiple tiles, it may happen quite often. For reference, my screen will be drawing about 2,800 objects at any one time. When panning, it will be adding/removing about ~200 elements every second, and each new element will need adding in the correct location based on depth.

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  • Matrices: Arrays or separate member variables?

    - by bjz
    I'm teaching myself 3D maths and in the process building my own rudimentary engine (of sorts). I was wondering what would be the best way to structure my matrix class. There are a few options: Separate member variables: struct Mat4 { float m11, m12, m13, m14, m21, m22, m23, m24, m31, m32, m33, m34, m41, m42, m43, m44; // methods } A multi-dimensional array: struct Mat4 { float[4][4] m; // methods } An array of vectors struct Mat4 { Vec4[4] m; // methods } I'm guessing there would be positives and negatives to each. From 3D Math Primer for Graphics and Game Development, 2nd Edition p.155: Matrices use 1-based indices, so the first row and column are numbered 1. For example, a12 (read “a one two,” not “a twelve”) is the element in the first row, second column. Notice that this is different from programming languages such as C++ and Java, which use 0-based array indices. A matrix does not have a column 0 or row 0. This difference in indexing can cause some confusion if matrices are stored using an actual array data type. For this reason, it’s common for classes that store small, fixed size matrices of the type used for geometric purposes to give each element its own named member variable, such as float a11, instead of using the language’s native array support with something like float elem[3][3]. So that's one vote for method one. Is this really the accepted way to do things? It seems rather unwieldy if the only benefit would be sticking with the conventional math notation.

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