Is there a Method out there to solve a nxn linear EQ?

I am considering using Java on a project I'm doing in school. I need to solve a very large linear equation, or I think it is, 121x121, many many times.
Is there an Method that I can input a matrix A and a vector b and get x:
Ax=b ?
If there is, which I'm sure there is but I can't find it, how will its performance match up with a C++ version (such as lssolve)?
THANKS!!!!
Josh

Have a google search for 'LUP' (or Lower Upper Permutation). If you have to solve 'Ax=b' for many different vectors 'b', a LUP decomposition of your matrix A comes in handy. The general idea is, that any (non singular) matrix A can be written as P*A = L*U, where P is a simple row-permutation matrix and L and U are lower and upper triangular matrixes respectively. Given a problem 'Ax=b', this problem can be rewritten as --
Ax= b -->
PAx= Pb -->
LUx= Pb -->
Ly= Pb -->
Ux= y
Where vector 'y' can be found by simple forward substitution and finally x can be found by a simple backward substitution. This method has the additional advantage of being quite numerically stable (thanks to the partial row permutation matrix P).
kind regards

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I guess your definition of "solved" is different from most...
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Hello all,
my component implements a component-interface with method BACK.
Thus my componentcontroller has the interface Method BACK.
When triggering BACK from an foreign component, the implementation within the componentcontroller is called. So far so good.
Now I want to POPUP_AND_CONFIRM when BACK is hit. But this POPUP_TO_CONFIRM requires me to create an action. But I can't create an action within the componentcontroller.
I could realize the POPUP_AND_CONFIRM within the components view. But how can I call a view-method out of the componentcontroller?
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http://help.sap.com/saphelp_nw70ehp2/helpdata/en/47/b9487e01602fe2e10000000a42189d/frameset.htm

Anyone figure out how to solve the 1015 error

anyone figure out how to solve the 1015 error

Each version of Photoshop has its own installation path therefore a different application as fars as Wacom Configuration. You would need to set preferences for each Photoshop installed on your system. However if you know XML. Wacom Tablet Preference File Utility can save your Wacom preferences into an XML file. That you may be able to duplicate a Photoshop install and the change the Photoshop Path. Or just change the prion version pathe the the new Photoshop path then restore your Wacom Preferences using the modified XML preference file.
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ANY ONE THERE TO SOLVE THIS ERROR INSTALLING ORACLE APPLICATION SERVER 4.0.7 .

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I AM USING AMDK62 366 HZ. 192 MB RAM
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OWS.VRF(1502)READ_ERROR WHILE TRANSLATING OWS.TCPPORT FROM
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Thanks to all of them who read my problem and tryed to solve it
I my self figured out the problem yesterday night.
I looked at the error message closely
the path in it said D:ORANT/ORAINST/OWS_PORT.STAT
sorry in my topic I didnot typed like this
please forgive me.
when I am looking at path I found the path is cruked you see there are forward and backward slashes so I thought may be its confusing while reading so I copyed entire CD to hard drive opend ows.vrf and changed manully the path to replace the backward slash with forward saved the file and now I tried to Install.
At last I installed OAS.
My next job is to post install OAS to configure 8i and OAS.
When I came today I got mail from Oracle support suggesting me to click on startup.exe
instead of allowing it to auto run.
I tried this also but not from CD but Copying entire cd to hard drive even then I got same error.
I mailed my solution to them.
I guess its time to open up a FORUM entirely for OAS on windows NT problems
null

Why apply 10.1.0.5 patch to SSO/OID server if no DB there? [SOLVED]

The readme for patch 4960210 (OAS 10.1.2.2) indicates that the Database patch for 10.1.0.5 should be applied to the OAS SSO/OID server.
In my configuration, the SSO/OID are on their own server, but the database is an existing Oracle Database on another server.
Does anyone know if the 10.1.0.5 patch should be applied to the SSO/OID server ONLY if the database is on that server and was installed as part of the OAS install?
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overall, I am trying to patch my OAS install to 10.1.2.2, and the 10.1.0.5 database client patch is a prerequisite.
TIA
Message was edited by:
Angrydot

The patch installs the database "client" on the OAS infrastructure tier. The 4960210 will install the database client on the mid-tier, but the client must be install on the infra-tier before the 4960210 patch.

Can't figure out how to solve the decimal point bug in this calculator code

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Change sign
Any tips on how to start on this one?
Thanks for your time,
Zainu

I think you misunderstand what I mean. The weird decimal doesnt comes out after I press the 'equals' sign. It comes out when im just pressing on the caculator number buttons
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So the caculation output display will show
2.
after that I press the no.7 button
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and then no.8 button. It appears like
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// .: Sets the multipliers so that new input numbers become decimals of a lower unit column
action_point.addEventListener(MouseEvent.MOUSE_DOWN, function():void {
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// Takes intput from the input_ buttons and adds it to the input after applying the multipliers in the method described above.
// If `point` is true then the multiplier_new is divided by 10, also as described.
function inputNumber(n:Number):void {
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                              //trace(multiplier_new);
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I think there is some code wrong in this function that makes this weird problem. I tried putting toFixed method but it's still not working.
Sorry for this long reply but I have to try my bestto explain with my bad english.

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Hi,
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if(){
leave;
}else if(){
leave;
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Rick,
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Hi everybody.
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public static ProjectModuleImpl/*Project.common.oas.RemoteProjectModule*/ getGenericAppMod(String platform)
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System.out.println("Communication exception! Unable to connect: " + ejbUrl);
e.printStackTrace();
System.exit(1);
catch (NamingException e) {
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" classes required by the EJB are missing from your classpath," +
" or your OAS host is short of resources");
System.out.println("Suggestion: Check the components of the URL," +
" and make sure your project includes a library containing the" +
" EJB .jar files generated by the deployment utility.");
e.printStackTrace();
System.exit(1);
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try {
System.out.println("Creating a new EJB instance");
Project.common.oas.RemoteProjectModule remoteInterface = homeInterface.create();
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System.out.println("connection done1");
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catch (Exception e) {
System.out.println("Module failed : " + e.getMessage());
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Am I to understand that this cannot be done? Please give me some info on this, because the applet works fine in the local mode and frankly, as you might quess, it is of no use if I cannot use the methods from OAS... I am waiting...

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public class AirplaneListTester
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import javax.swing.JOptionPane;
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private boolean add(Airplane);
private boolean remove(int);
private boolean isEmpty;
private boolean isFull;
private int getitem(int);
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add(Airplane) = null;
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Can only see 4 static methods out of 14

I have a single public class containing about 14 public static methods and some inner clasess.
When using the JDeveloper Ver3.1 build 681, to deploy these java methods as RDBMS stored procs, only 4 of the methods & inner classes are visible to publish.
The methods available to publish are main(), another method which calls most of the other non-available methods and 2 completely independent methods.
I need a clarification on my understaning.
If a method A calls another method B in the same class but B is not published as a stored proc.
When I invoke A, RDBMS sees a java source stored procedure and JSERVER kicks in. I presume that JSERVER can see all the methods declared in the class as I see in the *.java file.
When you deploy, what is taken across from the *.java file apart from connection properties details.
Any help/pointers will be appreciated. Thanx in advance.

I have a single public class containing about 14 public static methods and some inner clasess.
When using the JDeveloper Ver3.1 build 681, to deploy these java methods as RDBMS stored procs, only 4 of the methods & inner classes are visible to publish.
The methods available to publish are main(), another method which calls most of the other non-available methods and 2 completely independent methods.
I need a clarification on my understaning.
If a method A calls another method B in the same class but B is not published as a stored proc.
When I invoke A, RDBMS sees a java source stored procedure and JSERVER kicks in. I presume that JSERVER can see all the methods declared in the class as I see in the *.java file.
When you deploy, what is taken across from the *.java file apart from connection properties details.
Any help/pointers will be appreciated. Thanx in advance.

Is there a Method out there to solve a nxn linear EQ?

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