Source Code for Solving Systems of Equations Using QR Decomposition

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  - 1
    - Mouse Wheel Scroll in VB for Excel I have a Dell Optiplex GX240 (Pentium 4, 2 GHz) at work running Windows XP Prof SP1, and Office XP. When I develop macros and subroutines in Visual Basic for Excel of for Word, the wheel on my wheelmouse (Logitech optical) does not scroll in either the code window (top right) or the immediate window (bottom right). It does, however, scroll in the project window (top left) and in the properties window (bottom left). For all other Windows applications, the wheel scrolls just fine. The VB version in both Excel and Word is 6.3 (Excel 2002 SP2, and Word 2002 SP2) I have tried a Microsoft wheelmouse with the latest drivers and get the same result. Interestingly, I have done a check on other computers at our location and some scroll ok and some do not. All are Dell's with the generic Dell wheelmouse (made by MS), and all run XP Prof SP1, with Office XP Any ideas on this inconsistent behavior? Brian Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547279
  - 2
    - HELP! Difficulty while dragging MSFlexGrid I'm using drag and drop to drag an entry from an FlexGrid. Did you know that if you click on a line in an FlexGrid, and then drag your mouse off the bottom of the FlexGrid, the FlexGrid scrolls to the bottom of the list? Same thing if you move the mouse off the top of the list, the grid srolls automatically up to the top. This is wreaking havoc with my drag and drop operation. If the user's drag motion exits the grid from the side, then all appears well; The highlighted row remains where it is as the user drags the little person icon down to the drop zone. But if the user's drag motion exits the grid off the bottom (or the top), then all hell breaks loose as the grid starts scrolling madly for no apparent reason, the highlighted line representing the entry which is being dragged disappears and the user is left staring at the final entries in the list after the drag completes. Is there anyway to stop the FlexGrid from autoscrolling like this? Who needs it? That's what the vertical scroll bar is for. Thanks for any help which you can offer! - Joe Geretz - Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547278
  - 3
    - Encode BMP files Is there a way to encode and then decode BMP files? Maybe i can apply some kind of a mask to bmp file so it couldn't be opened and viewed, and only decoder programm can decode it and then bmp file would be viewable? I need to do it in VB Code. Thanks for your help. Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547231
  - 4
    - Formatting numbers in a column in excel through a vb6 application How can I format the numbers in a column of various worksheets in excel that I am writing to with a vb6 app? When opening the worksheet the numbers are being changed sometimes. Eg. The numbers are inventory numbers. 12.345 stays the same but 02.456 changes to 2.456 and 32. 120 changes to 32.12. I would appreciate any and all help with this problem. Thanks newbie rick Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547224
  - 5
    - badimplementsrefincompatlib I am having badimplementsrefincompatlib Error when ever I try to run my vb program it has a binary Compatibilit PLease advice... Thank Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547222
  - 6
    - Detecting non-dimensioned array Is there any way to detect that an array has not been yet dynamically sized. If I run into LBound() before a Redim, I get subscript out of range error and I want to eliminate this error (and I don't want to do error handling or any other "tricks"). Is there any legal keyword or command like if array = nothing then etc... ??? Thanks ! Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547221
  - 7
    - How to show Start Menu? How would I show the user's Programs menu? I want to use a button to show one of the user's menus somewhere down the Start menu tree. How do I call that up, and how can I know which item the user selected? (Ideally, the exact menu would be user defined, it could be any one, typically under the Programs branch.) Any hints, links, or assistance would be appreciated. LFS Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547212
  - 8
    - "Data Environment" for VB.net ? Hello, Are there any add-in or tools out there (for VB.NET ) that would allow one to drag and drop database fields onto a form. (similar to the DataEnvironment in vb.6) ? I am looking for one that could set the validation rules for each TextBox based on the definition of the fields in the tables I know there is the Data Form Wizard but that's not what I need. TIA Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547202
  - 9
    - How do I know when user drops a widget? How do I know when the user drops a widget which is in the process of being dragged? Do I need to implement the DragDrop event on every widget on my Form? Thanks, - Joe Geretz - Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547199
  - 10
    - Error 3197: The Microsoft Jet database engine stopped the process because you and another user are attempting to change the same data at the same time. Hi, The Microsoft Jet database engine stopped the process because you and another user are attempting to change the same data at the same time. (3197) We are getting this error while inserting/updating SQL Server database using the Jet engine. Jet 3.6, SQL Server 2000. Any ideas? Thanks, Brij Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547194
  - 11
    - restart program My program need a restart for the configuration changes How to End and Restart my program automaticcally Gerard Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547189
  - 12
    - date prob Hi this is my code: Dim e As Date, f As Date e = CDate("1/1/2004 23:55:00.32") f = CDate("1/1/2004 00:00:00") the result is type mismatch..... can you help me??? carlo Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547178
  - 13
    - Deployment Problem This is a multi-part message in MIME format. ------=_NextPart_000_000E_01C42E12.0855B460 Content-Type: multipart/alternative; boundary="----=_NextPart_001_000F_01C42E12.0855B460" ------=_NextPart_001_000F_01C42E12.0855B460 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I have created an application using Visual Basic/Crystal Report 9 and = Sql Server 2000. Then I also create setup successfully, but it behaves = differently on different machine after installation. On some machine it = reunperfectly, one some of the machine it gives me following error: I tried various time, but it is not working properly. Please let me know = how do I handle this. Ashish --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.672 / Virus Database: 434 - Release Date: 04/28/2004 ------=_NextPart_001_000F_01C42E12.0855B460 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML 6.00.2800.1400" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT face=3DArial size=3D2>I have created an application using = Visual=20 Basic/Crystal Report 9 and Sql Server 2000. Then I also create setup=20 successfully, but it behaves differently on different machine after=20 installation. On some machine it reunperfectly, one some of the machine = it gives=20 me following error:</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2><SPAN=20 style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; = mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; = mso-fareast-language: EN-US; mso-bidi-language: AR-SA"><IMG=20 height=3D101 src=3D"cid:000901c42de3$ee93db70$0500a8c0@armour.com" = width=3D278=20 v:shapes=3D"_x0000_i1025"></SPAN></FONT></DIV> <DIV><FONT face=3DArial size=3D2><SPAN=20 style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; = mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; = mso-fareast-language: EN-US; mso-bidi-language: = AR-SA"></SPAN></FONT> </DIV> <DIV><FONT face=3DArial size=3D2><SPAN=20 style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; = mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; = mso-fareast-language: EN-US; mso-bidi-language: AR-SA">I=20 tried various time, but it is not working properly. Please let me know = how do I=20 handle this.</SPAN></FONT></DIV> <DIV><FONT face=3DArial size=3D2><SPAN=20 style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; = mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; = mso-fareast-language: EN-US; mso-bidi-language: = AR-SA"></SPAN></FONT> </DIV> <DIV><FONT face=3DArial size=3D2><SPAN=20 style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; = mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; = mso-fareast-language: EN-US; mso-bidi-language: = AR-SA">Ashish</SPAN></FONT></DIV> <DIV> </DIV> <DIV><FONT face=3DArial size=3D2><SPAN=20 style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; = mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; = mso-fareast-language: EN-US; mso-bidi-language: = AR-SA"><BR>---<BR>Outgoing=20 mail is certified Virus Free.<BR>Checked by AVG anti-virus system (<A=20 href=3D"http://www.grisoft.com">http://www.grisoft.com</A>).<BR>Version: = 6.0.672 /=20 Virus Database: 434 - Release Date: = 04/28/2004</SPAN></FONT></DIV></BODY></HTML> ------=_NextPart_001_000F_01C42E12.0855B460-- ------=_NextPart_000_000E_01C42E12.0855B460 Content-Type: application/octet-stream; name="clip_image002.jpg" Content-Transfer-Encoding: base64 Content-ID: <000901c42de3$ee93db70$0500a8c0@armour.com> /9j/4AAQSkZJRgABAQEAYABgAAD//gAcU29mdHdhcmU6IE1pY3Jvc29mdCBPZmZpY2X/2wBDAAoH BwgHBgoICAgLCgoLDhgQDg0NDh0VFhEYIx8lJCIfIiEmKzcvJik0KSEiMEExNDk7Pj4+JS5ESUM8 SDc9Pjv/2wBDAQoLCw4NDhwQEBw7KCIoOzs7Ozs7Ozs7Ozs7Ozs7Ozs7Ozs7Ozs7Ozs7Ozs7Ozs7 Ozs7Ozs7Ozs7Ozs7Ozs7Ozv/wAARCABlARYDASIAAhEBAxEB/8QAGwABAAMBAQEBAAAAAAAAAAAA AAMEBQYCAQf/xABHEAABAwMDAAUIBgcGBQUAAAABAAIDBBExBRIhBhMVIuEUMkFRYWORojVxdIHB 0RYjQkVSk9MzU3KUofAlVWKx8TZDZHOy/8QAGQEBAQEBAQEAAAAAAAAAAAAAAAIBAwQF/8QAJxEB AAIBAwQCAAcAAAAAAAAAAAECAxExURITITJBUiJhgaGx0fH/3QAEACj/2gAMAwEAAhEDEQA/AGva RR6w3SI6yujoep0UPimlHcEhmDGhx/ZaS+xPoys2PoA6q0+nk06vgq5ZAwPk3FsQcZJGO290lzR1 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  - 14
    - String manipulation Gday, Ive got a string that contains a whole bunch of HTML tags - the values of which I need to change. For some reason the document contains a whole bunch of '<FONT SIZE=2>', I need to search and replace all these instances with my own string value which would be '<FONT SIZE=3><FONT TYPE=arial>' Is there some way to do a search and replace in VB without resorting to VBA? (I cant use VBA because this piece of code is running on a server that doesnt have office installed.) Thanks, Grant Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547159
  - 15
    - Some Help Please Hello, Below is the code unit responsible for the error, "Runtime error 3706, Provider not found, It may not be properly installed." This is happening while running the application after the installation and happening only on few PCs. Can anybody give any hint on a solution for this? Function goGetconnection(roCnn As Object, ByVal vsDataPath As String) As Object With roCnn If Not roCnn.State = adStateOpen Then .ConnectionString = "Provider=MSDASQL.4;DBQ=" & vsDataPath & ";Driver={Microsoft dBase Driver (*.dbf)};Extended Properties=""DefaultDir=" & vsDataPath & ";DriverId=21;FIL=dBase III;MaxBufferSize=2048;PageTimeout=600;""" .Open End If End With Set goGetconnection = roCnn End Function Thanks and Regards Sathian Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547154
  - 16
    - Closing Program Correctly On Windows Shutdown Hi, I was wondering, is it possible to get a program to close itself down properly when it detects windows shutting down, rather than having windows kill it, or pressing end task when the screen pops up? I'd like it to do something like Word or Excel does when windows shuts down, and it pops up and asks if you want to save changes, only we wont be prompting the user, when the program closes, it automatically write some date to a database. Trouble we have at the moment is our users just shut windows down, without exiting the program correctly, (even after we're explianed what to do to them) We're using VB6 to program the application! Cheers Ben Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547148
  - 17
    - XP Styles: Changing forecolor of Checkbox & OptionButton Hello, Is there a way to change the forecolor of the checkboxes and optionbuttons when XP styles have been applied to the application? I have a black background throughout the program and now I need to place a couple of checkboxes and optionbuttons and they are completely blending in. (Im not talking about that XP style bug which causes the controls to appear black when placed in a frame, im placing all my controls inside a picturebox). I need to change the forecolor of these controls; the forecolor property is not doing anything. Is there ANY way to do it? - Faraz Azhar Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547146
  - 18
    - Rename files Hi How can i rename (not copy to another dir, delete and copy back with antoher name) a file in a directory. This shoulb be easy but i can't handle! Thanks for every help! Nijazi Halimaji Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547144
  - 19
    - Simple Threading Question I am experiencing a problem while doing multithreading in vb I am using CreateThread() API for creating another thread from my form code Private Declare Function CreateThread Lib "kernel32" (ByVal lpThreadAttributes As Any, ByVal dwStackSize As Long, ByVal lpStartAddress As Long, lpParameter As Any, ByVal dwCreationFlags As Long, lpThreadID As Long) As Lon I call the above API from the form code, to execute the thread procedure which is written in a module Public Function ThreadProc( Dim test as Lon test = 1 'Function simply exits from here End Functio The problem is, after the thread procedure is executed, I get an application error and my form crashes Any idea why this is happening If I loop in the threadproc forever, and If I am calling TerminateThread API from the form code, the thread exits without this application error Thanks In Advance Suni Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547141
  - 20
    - Accociate internet protocol I would like to associate a protocol (like http://, ftp://, etc) with my vb6 program. How do I do this? I know how to associate individual filetypes, but I want to create/use a custom protocol (like abc://) that will contain many filetypes. Thanks. Eric Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547135
  - 21
    - mscomctl.ocx http://activex.microsoft.com/controls/vb6/mscomctl.cab The file in that particular cab, is the SP6 file. I compared the two files and they've compared identical. They also are tagged with the following information: Size: 1.03 MB (1,081,616 bytes) Mod Date: Tuesday, March 09, 2004, 4:45:46 PM Version: 6.1.97.82 The file that exists in the System32 folder on XP Pro: Size: 1.02 MB (1,078,112 bytes) Mod Date: Thursday, February 26, 2004, 1:00:00 AM Version: 6.1.97.82 I just did a reinstall of SP6 and it did not replace the existing System32 file. The two files are completely different files. And I'm not sure what to make out of this right at the moment. So I'm just passing the information along and looking for comparisons, etc. -- Jim Carlock http://www.microcosmotalk.com/ Post replies to the newsgroup. Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547134
  - 22
    - Sample code Hello, Can anybody send me some sample code in VB using INET control for connecting to FTP location in both Active and PASSIVe Mode? Or is it possible to give me a possible source location for the same? Thank you very much in advance. Regards Sathian Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547128
  - 23
    - SP6 and problems with XML Hi, Today I upgraded my development machine with Visual Studio SP6. Now, when I compile my app and upload my DLL to my production app server, I get an error (Object variable or with block variable not set) whenever I try to access an object of type DOMDocument30. My DLL resides on the app server and is called from an ASP page on a separate web server. A proxy stub for the DLL is registered on the web server, and the DLL has been set up as a COM+ app on the app server. This app has been in production for months without a hitch. Here's a simplified example: Sub Test(ByVal vsXMLString as string) Dim loXML as New DomDocument30 loXML.loadXML vsXMLString End Sub In this example, the error occurs when I try to call loadXML. I've tried other methods of the object as well, and I always get this error. The code I'm running hasn't changed at all. Like I said, the only thing different is that I installed SP6 on my dev machine, re-compiled there, and re-installed my DLL on my prod server. (I also recreated the proxy stub and reinstalled it on the web server.) Now my app doesn't run in production and my users are ready to slit my throat (not to mention my boss). Any ideas? Thanks, Dave Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547114
  - 24
    - Getting status from Inet control in FTP mode Hi All, I'm using the built-in VB6 Internet Transfer Control (Inet) in FTP mode to transfer a file. The transfer works fine. What I'd like to know is how do I obtain progress information, so that I can update a progress bar and alert the user as to how much of the file is done/left. I already know how to use the progress bar, I'm just missing the periodic progress message. Thanks in advance, -- Martin A. Weinberger ButterflyVista http://www.butterflyvista.com/ (when responding to me by email, remove the "X_" from the beginning) Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547111
  - 25
    - Migrating to Server 2003 Hi All, We are about to migrate a VB6(sp5) application from an NT4 server to a 2003 Server. Are there any gotchas that I need to be aware of before proceeding? Any incompatibilities? Do I need to recompile the application on the new server before testing or should it just transfer right over? We are not interested in moving the app into .NET, so it will simply be a classic VB win32 app sitting on Server 2003. I've searched Google, etc, but I can't seem to find any specific info... TIA, Rob Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547106
- Next
  - 1
    - Drag N Drop Woes I haven't done a whole lot of drag and drop so maybe I'm missing something obvious. Let's say I have 25 widgets on my application form. That's not a lot. Let's say also that one of these widgets is the source of a drag-n-drop, and one is a legitimate target onto which it can be dropped. The source widget is in Manual mode. Starting the drag is no big deal. A module level variable tracks the mouse down state for the control (MouseDown, MouseUp); if a MouseMove event occurs while the mouse is down then SourceWidget.Drag starts the drag operation. Starting the drag operation is no big deal. It's ending it which seems to be a real pain. Although the application will only process the drop if dropped on a particular TargetWidget, the user might drop the SourceWidget anywhere on the screen. This means that in order to know when the user has completed the drag, I need to implement every single DragDrop event handler for every single widget on the form? This is a development / maintenance nightmare! And what about changing the icon? We start off with the default drag icon, but as the icon is dragged over it's drop zone, I'd like to morph the icon to indicate that it can be dropped here. OK, that's easy enough, simply replace the DragIcon in the DragOver event handler of the TargetWidget. But now the user moves off the drop zone without dropping. Now I need to change the icon back. So again, do I have to place code into the DragOver event handler of every widget on the form to make sure that the correct icon is showed while the object is dragged over that region? (Technically, I'd only have to implement the handler for those widgets which border on the drop zone. But even this is not strictly true. Sometimes a quick mouse move will traverse a small area without triggering a DragOver.) Again, a development / maintenance nightmare! It gets worse. In this primitive example, I cited 25 widgets and one Drag source. In my scenario, we're more likely talking about three separate drag sources, with 2 different icons for each, depending on whether the object is over the drop zone or not. And between all frames, buttons, checkboxes, text boxes, etc., I have a heck of a lot more than 25 widgets on this particular form. Please tell me I'm missing something. It can't really be as cumbersome as it seems. Can it? Please say it ain't so! Thanks for your help, - Joe Geretz - Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547104
  - 2
    - Invalid Clipboard Format Hi, I placed an icon (of type .ico) in a resource file using the resource editor. I want to place the icon on a tool bar so I use the following command to put the icon a the clipboard. Clipboard.SetData LoadResPicture(101, vbResIcon) (to be followed by a ".pasteface") When this line runs, I get "Runtime Error 460" - "Invalid Clipboard Format" The icon was created with IconCoolEditor. BTW I don't have this problem with BMP files but I want to work with ICO files because of the tranparent background.. Thanks, Mark _________________________________________________________ Mark Durrenberger, PMP Principal, Oak Associates, Inc, www.oakinc.com "Advancing the Theory and Practice of Project Management" ________________________________________________________ The nicest thing about NOT planning is that failure comes as a complete surprise and is not preceded by a period of worry and depression. - Sir John Harvey-Jones Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547102
  - 3
    - Byte Array Speed Years ago I wrote a simple Cipher program in DOS Assembler. I take a 6 Byte Password then XOR it to six Bytes of the Target file then write out the XOR'ed Bytes to a new file. I tried to do this in VB by Reading the Target file into a byte array , then proceeding as I did in the .asm program. It Is so Slow ..... I find it 10 times faster to exit to a .asm Prog to do the Cipher. and just use the VB Program for a nice interface ! Is there a faster way to accomplish this In Pure VB ??? Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547098
  - 4
    - Creating an interface class Hi, I'm wanting to crate an interface class. No problem with that -> I create it, and then for the 'child' classes, I use the 'implements' keyword, and it all works fine. Until I try to have an interface function that returns a UDT. With a normal class, I accomplished this by declaring the function 'Friend', and having the UDT defined as Public in a module. Is there a workaround for this when you have an interface?? Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547094
  - 5
    - Sony IP Camera and VB? Anyone know how I could capture video from a Sony IP camera using VB? Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547088
  - 6
    - Taskbar Buttons How can I enumerate all the windows that have a taskbar button Some windows don't follow the following set of rules -------------------------------------------------------------------------------------------------------- -If the window is not owned it will have a taskbar button, unless one (or more) of the following is true * The window is hidde * WS_VISIBLE is not se * WS_EX_TOOLWINDOW is se -If the window is owned it will not have a taskbar button, unless * WS_EX_APPWINDOW is se -------------------------------------------------------------------------------------------------------- An example of such a window (that doesn't follow the rules) is the main Excel window All excel workbooks have a seperate taskbar button, and the main windo (ClassName = "XLMAIN") doesn't, despite the fact it fits into the list of taskbar button eligabl windows according to the above rules and there is no other way to distinguish it from th others. However, when closing all workbooks the main window's taskbar button does appear.. Does anyone have a solution or a comment on the issue Many thanks Gilad Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547085
  - 7
    - Encryption I would like to use ADVAPI32.dll to encrypt data sent over the internet between our Visual Basic client and server applications but am having a tough time finding a place to start. I found some code in MSDN from 1996 but when I run it the Decryption returns truncated data. I was wondering if anybody out there knows where I can find an example of how to use this I am running W2k Professional with VB6 sp5. Our program will be deployed over all version of Windows Any help is greatly appreciated, Ben Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547051
  - 8
    - Formating the legend on an MSChart Hello, Is it possible to have the represenging line in the legend not show up for one series but show up for another series? Thanks in advance. Mike Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547038
  - 9
    - Testing strings for characters? I'm trying to test strings for whitespace characters. In C there's a function isspace() that handles this. Do we have something equivalent under VB6? I'm all for hand-rolling, but not if this wheel's been invented. Charles Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547036
  - 10
    - Labels are hidden below tabstrip-controls Hi I've got a tabstrip-control which I add a label and a textbox to. For some reason the label is hidden below the tabstrip-control. I asked on an IRC-channel about the issue, and they said that it's because of the label being a simpel control (doesn't have a hWnd), but when asking how to get past this problem, they asked why I don't use VB.net instead. Wondered if anyone else here has a solution to my problem. I don't want to put the labels inside a container object (picturebox or frame) because that would make the design inconsistent since I've manifested my Visual Basic 6 so that I get XP style on the controls. Thanks in advance, Ronny Salomonsen Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547035
  - 11
    - Convert PDF to TIF, How? I have need to set up even if is a tif B/N or to colors Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 547008
  - 12
    - Converting an Access Application Hi all, Not sure if this is feasible or not, but I'm gonna ask anyway. My company has developed an application using MS Access 2k as a front end to SQL Server 2000. As we grow, and add customers (who are also growing) Access's limitations soon come to the fore front of most of our problems. Is there a relatively easy way to convert from Access 2k to Vb .Net or even VB 6 without basically re-writing the whole app? I am thinking there isn't, but I thought I would ask those who are smarter then I in this arena. Thanks In Advance (even if it is bad news) Randy Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 546995
  - 13
    - Free Memory Hi, All, I work with VB6, and ActiveX So I note that the memory doesn't free when the form ou usercontrol is unloaded, and so the ammount of memory that my program use increase each time I launch my form. So, is there any free software, or utilities, to debug the freeing of memory ? Thanks in advance Mourad Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 546988
  - 14
    - Help with Access and VB Hi All, I am trying to Disable up to 8 text boxes on a form, (labelled WS1 - WS8). Each box is sequential, and holds a date when a part passes a quality check. I would like all previous boses to be disabled and all future boxes disabled until a date is entered for the current stage. I have included my code below. I believe I have the idea correct but the syntax where I try to reference the Me.WSX values is wrong. If anybody could advise I would be grateful. TIA, John ----------------------------------------------------- Sub STAT() Dim WSNumber As String Dim WSNo As Integer Dim WSVal As Integer Dim WSNoX As Integer WSNo = 1 WSVal = 0 Do While WSVal < 1 WSNumber = "Me.WS" + CStr(WSNo) WSVal = (WSNumber) If WSVal < 1 Then WSNo = WSNoX WSNoX = WSNo + 1 Do While WSNoX < 9 WSNumber = "WS" + CStr(WSNoX) Me.WSNumber.Enabled = False: WSNoX = WSNoX + 1 Loop WSVal = 1 Else WSNo = WSNo + 1 Loop End Sub Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 546984
  - 15
    - shell command - HELP Hi, I created 4 different VB apps. App1 must run first. App 2 must execute after App1 is complete. App3 must run after App2 completes. I created App4 that calls each one of those apps in order using the shell command. The problem is that using that command, App4 doesn't wait until app1 is complete before starting with App2 and so on. Any ideas how to make these calls work properly. I'm not sure if the term is synchronous or Asynchronous. thanks rafael Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 546978
  - 16
    - Referense to object by name How referense to object by string variable ? Set obj = ObjByName("MyObj") ObjByName ? Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 546970
  - 17
    - Step-by-step dialog? List: I need to create or find a "step by step" dialog for user setup. I can think of a couple ways to do this--sequentially called modal forms springs to mind. But I'm wondering if there's an existing control that does this. I'm envisioning, for example, a six-page setup dialog with Next and Previous (or Back or whatever) buttons that steers users in the direction of making valid starting entries: Enter your name and password: Enter the names of your department heads. They can set their passwords later . . Enter the names of . . . That's the basics. There are certain features that each level shares, and certain ones which are unique, but that's not a huge deal. Is there an existing VB control or a third-party control that does this? I'll work on inventing the wheel in the meanwhile . . . :-) Thanks Charles Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 546964
  - 18
    - Please help: ActiveX and Interfaces?? Hi, I'm wasn't quite sure of the title I should give to this post as I don't know a lot about the aspects of VB I think I may need to solve my problem (e.g. ActiveX DLLs & EXEs, CallBacks, Interfaces etc.) despite trawling through a lot of stuff. Anyway I'll try and explain the problem and see what you make of it. From the offset I'll say that one of my primary concerns is trying to obtain a high degree of extensibility without the requirement of compiling my main project - although this might not be possible. From my main application I would like to be able to launch separate components (I use the term components at this stage as I don't know yet whether it will be a standard exe, activex dll, activex exe etc.). Each of These components would be different in appearance, and would require user interaction to perform a set of steps that would ultimately lead to a common end - in my case the configuration of an instrument. Irrespective of the component launched I'd like them all to raise a common set of events within the main calling application. For example, an OnInitialized event which is raised when the program successfully launches, an OnConfigured event when the set of steps have been successfully performed and an OnTerminate Event when the program unloads - which it would do when the steps are complete or when the user cancels out of the sequence of steps. From an appearance point of view it would be similar to setting up a DSN (or data source name), i.e. you first select the driver for which you want to set up the data source e.g. MS Access Database or SQL Server etc. (In my case you would select the instrument you wish to configure.) Based on this selection a specific wizard is launched to allow you to configure the data source. (In my case based on some lookup list in a database I'd determine the appropriate configuration wizard to launch for the selected instrument) When you are finished configuring the data source it appears in the list of DSNs and you can start the process again (In my case the component would have written configuration details to a database). Ideally I'd like to have the ability of adding new components without having to recompile my main application (meaning I wouldn't have to recompile my app to add support for new instruments) - I was hoping I could do this if the all these components were designed in such a way that all the main application would be concerned with is those common events i.e. all the components interact with the main app through some common interface. I don't know if I've explained it very well but I'd appreciate any comments you may have. Thanks Paul Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 546962
  - 19
    - UserName Validation in VB 6.0 Hello I have a login form in which a user enters a username and pwd in that i want to restrict the user to certain no of characters only For ex in the username text box i don't want the user to enter 25 characters i want the user to limit to 10 chars if he enters 11characters i want to tell him this is not permitted something like tha Thanks, Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 546961
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    - SORRY POST TO WRONG GROUP Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 546949
  - 21
    - Help with ASP on a Linux server The folowing code reads the file correctly on my localhost <% Dim urltext, MYPath MYPath = Server.MapPath("testread.txt") Set Fconn = server.CreateObject("Scripting.FileSystemObject") Set file = Fconn.OpenTextFile(MYPath,1,false) output = file.readall file.close Set file = nothing Set Fconn = nothing Response.write output %> But when I upload it to my website I get a blank. The testread.txt file is definitely present on the web site server Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 546948
  - 22
    - Read only variable Hi all I have writen a all and there is a status flag that is public .. currently Public Live as boolean this is needed so that the calling progam will know if it is live ot not But I don;t what an external program to be able to change the state of this variable .. What do I done to make it changeable within the code of the class but not changeable outside it ? Thanks in advance Russ Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 546946
  - 23
    - How to create a table in Access via ado.net Hi, I'm new to vb.net, could someone please point me in the right direction. I need to know how to programmatically create a new table, in an Access database. Thanks Iain Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 546937
  - 24
    - DLL Files Hi Al I'm developing my Application in VB5.0 and would like to create dll files from some of the modules. These dll will the be used on other applications I've created a dll file, somthing like this Public Sub MyMeassage( Msgbox "Hallo all end su Compiled as and AxtiveX Dll file - Say.d In my application in a Module I declared it Declare Public Sub MyMeassage lib "Say" ( and called i Call MyMeassage ( The following error is produced The entry piont can't be found What am I doing wrong Thanks Derick Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 546935
  - 25
    - OLE dRag&Drop from Outlook Hello! How can I Drag&Drop e.g. a Journal entry to a VB application so that I can get text of journal entry as well as attachment? Thanks in advance! Tag: Source Code for Solving Systems of Equations Using QR Decomposition Tag: 546932

I am trying to solve a system of linear equations using
the QR Decomposition algorithm. Instead of reinventing
the wheel, I was hoping that someone here has already
coded this or can point me in the correct direction.

Many thanks in advance.

Andrew
andrew@aspco.com

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Re: Source Code for Solving Systems of Equations Using QR Decomposition by Duane

Duane
Thu Apr 29 20:29:18 CDT 2004

Andrew wrote:
>
> I am trying to solve a system of linear equations using
> the QR Decomposition algorithm. Instead of reinventing
> the wheel, I was hoping that someone here has already
> coded this or can point me in the correct direction.
>
> Many thanks in advance.

www.netlib.org

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