Help with solving Riccati Equation

Hoping someone can help me out with solving this equation.  The continous algebraic riccati equation is set up in the form A'*X + X*A - X*B*X + Q.     There is a riccati solver in the control and simuation toolkit but the equation is set up as A'*X + X*A - [X*B + N]*inv(R)*[X*B + N]' + Q = 0.  Default for R is just the identtity matrix, and default for N is empty matrix so does this reduce to A'*X + X*A - X*B*B'*X + Q  ?  (Not 100% on that.)   So is there anyway to use labviews CD Continuous Algebraic Riccati Equations VI on my equation?
Thanks so much for any help.

I think you are correct.  I think that technically the last X is transposed, but since X is symetric X' = X, so it makes no difference.

Similar Messages

  • I need your help with solving a non-standard solutions.

    Hello!
    I need your help with solving a non-standard solutions.
    My name is Andrii and I represent the civil charity. Not so long ago, one man gave us the iPhone 4S (as a donation).
    But later - it became known that this iPhone can not work with SIM cards Ukrainian mobile network operators, as it is blocked by Verizon.
    Is there a way to unlock it with your help, and how it can be done?
    I hope for your understanding and assistance in this matter!
    Thank you.

    Contact a third party unlocking service.
    Purchase an unlocking code.

  • Solving Riccati equation

    I have experience with Systembuild only.
    I saw that Xmath has a module with a function to solve the Riccati equation. How can I use this function in Systembuild?

    The Riccati equation can be solved in SystemBuild using a UserCodeBlock where internally the function XmathExecute is called to solve the Riccatti equation using Xmath.
    This Riccati equation solver could be placed in a slower periodic SuperBlock so that it is not recalculated every time step.
    Another UserCodeBlock (file scoped with the Ricatti solver UserCodeBlock) could return the new A and B matricies.
    But, the real problem is how to inject the new A and B matrix into your model.
    The SystemBuild StateSpace block A,B,C and D matricies can be only changed during simulation initialization.
    You would have to create your own StateSpace SuperBlock using the matrix multiple blocks, UserCodeBlock(returns new A,B), intergator block and summer blocks to calculate.
    Xdot = Ax + Bu;
    Y      = Cx + Du;
    It would be much easier if there were a StateSpace block that had the A and B matricies as inputs.
    Note: using SystemBuild the UserCodeBlocks and StateSpace SuperBlock dimensions are fixed and would have to be determined before hand.

  • Need help with solving the (basic) programming error

    I'm reaaaaaaaaaally new to Java and programming in general. I've been glancing through my older brother's old stuff (he's back at Uni!) and I've taken an interest.
    Anyways, so I'm trying to finish this really simple program cause I wanna wow some friends ("wow" = "haha we've done this before a gazillion times") but I can't seem to solve this "incompatible lines" bug in the code, specifically line 24. I've been looking at it for exactly 4 hours!! Programming in Java 1.6.
    Thanks for the help!! :)
    import java.util.*;
    import java.util.Scanner;
    public class LuigisPizzaProgram {
         public static void main(String args[]) {
         System.out.println("Luigi's Pizza");
         System.out.println("-------------------------------------------");
         System.out.println(" a(SML) b(MED) c(LRG)");
         System.out.println("1. Cheese 5.00 7.50 10.00");
         System.out.println("2. Pepperoni 5.75 8.63 11.50");
         System.out.println("3. Combination 6.50 9.75 13.00");
         System.out.println("4. Vegetarian 7.25 10.88 14.50");
         System.out.println("5. Meat Lovers 8.00 12.00 16.00");
         System.out.println(" ");
         System.out.println("What kind of pizza do you want?");     
         int kind = new Scanner(System.in).nextInt();
         System.out.println(kind);
         System.out.println("What size of pizza do you want?");
         char size = new Scanner(System.in).nextLine();
         System.out.println(size);
         }

    Having said that, it is nontraditional to use Scanner like you are using it. There is no way to reuse it in order to get more input. Better would be something like:
            System.out.println("What size of pizza do you want?");
            Scanner scan = new Scanner(System.in);  // create the scan variable
            String size = scan.nextLine(); // now use the scan variable
            System.out.println(size);Also, when posting your code, please use code tags so that your code will be well-formatted and readable. To do this, place the tag [code] at the top of your block of code and the tag [/code] at the bottom, like so:
    [code]
      // your code block goes here.
    [/code]good luck, pete

  • New Help with solving runtime errors

    HI.
    I am from a Microsoft world and I am so used to hitting F1 and using MSDN. I am also a bit of an Oracle developer too. hence my entery into java.
    Now, I have started Java I was wondering where I should start to look with this error message:
    ExampleApplet.java:41: �N���X actual.OpenlookButton �����������������B
    OpenlookButton button3 = new OpenlookButton("Java is Cool!");
    Line 41 in ExampleApplet.java is:
    OpenlookButton button3 = new OpenlookButton("Java is Cool!");
    The OpenlookButton.class is in the same folder as this class. How do I debug into this and find whats going wrong?
    I tried the jdb utility yet it said it couldn't find the class file?
    Help. You guys know what its like when you're starting out right?
    Thanks
    ps I'm using Windows 2000,
    java version "1.2.2"
    Classic VM (build JDK-1.2.2_005, native threads, symcjit)
    DOS and notepad. YEEEHAAA!!!!

    Hi,
    Firstly, why are you using such an old version of Java? Now there is a 1.4 version and you are still using a 1.2 version... I would suggest upgrading unless there is a concrete reason for staying with the old jdk (e.g. you are writing Java within some other system such as Lotus Notes).
    I have never seen such a strange error message, it looks like there is something wrong with your character encoding with those strange outputs. Is your system using English or another language? Maybe it is just appearing snafu'd on this forum somehow...?
    As far as the line of code you have supplied there is nothing wrong with it that I can see, assuming you have defined the class "OpenlookButton" which you say you have done.
    (Upgrading to Java 2 would allow you to use Swing components, which allow a pluggable look-and-feel. Then you can use the JButton class - and any other JComponents - and the user or your application code can set the LookAndFeel to any that is available, including CDE/Open/Motif, thereby eliminating the need to define separate classes for components with different appearances...)
    Is the current directory "." (thats a dot on its own) in the classpath? It needs to be otherwise the JVM won't look there to find the classes. Seems strange but when you think about it, it does make sense.
    Also the error output lists the OpenlookButton class as being in the "actual" package but you say it is in the same path as the ExampleApplet. Try moving it into a subdirectory named "actual" and try again.
    Good luck...
    Ben
    P.S. There is nothing wrong with a command prompt and notepad! Imho it is much better than using a crappy IDE which formats your code all wrong and leaves you clueless as to what is really going on....
    P.P.S. For next time, the more details you post, including source code, the easier it is to help.

  • I would appreciated any help with solving the IOS 5 Error message -50

    Did you expereince the same message? If so, if you can help me I would appreciate it. iTunes is uodated but when i ty to update my phone to IOS 5 I get the above error. Thanks for looking.

    I am also having this issue, upgraded to ios5 however when attempting to back up my phone i get the same -50 error message.
    iPhone 3G-S 16gb.

  • Need help with writing an equation in java

    Hey, does anybody know how to write x - ((x^3)/6) in java.
    Thats x to the power 3
    Thanks

    google "java.lang.Math pow" for information on the power method. beyond that, it should be pretty straightforward
    edit: I feel extra helpful today:
    java.sun.com/j2se/1.5.0/docs/api/java/lang/Math.html
    Edited by: redfalconf35 on Nov 5, 2007 11:35 AM

  • Hi can any one help with solving this problem

    Hi Every body,
    I had an xml file ,with using parser i want to read the xml file ,but in my xml file i had an error "&data_12546_norm_589567;"
    To process this error and read the xml file content in java file.
    How can i read the xml file.
    My xml file is this
    <?xml version="1.0" encoding="UTF-8"?>
    <Student>
    <Name initials="KRONI">
    <Softwaredepartment/>
    </Name>
    &data_12546_norm_589567;
    </Student>
    Thanks in advance
    regards
    Ram

    You have to replace & with &amp;Like below
    <?xml version="1.0" encoding="UTF-8"?>
    <Student>
    <Name initials="KRONI">
    <Softwaredepartment/>
    </Name>
    &amp;data_12546_norm_589567;
    </Student>

  • (Need Help With Solving a Problem Of Install A Certain Plugin) Need Help ASAP!

    What Do I Need? It Pop Ups This-->http://prntscr.com/57irl9

    What? You downloaded a project with an expression and it is broken. Since you haven't bothered to provide any proper details, we can't tell you anything beyond that.
    Mylenium

  • Help with wordpress app

    Hi just finding my feet with my new iPad and have a question regarding wordpress. When I write a blog in pages and cut and paste it into wordpress and email it to my website ect I lose all paragraphs, so it publishes in one block of text. A pain for anybody to read. Any help with solving this would be appreciated. Cheers

    I have my blog on my company website and several social networking blogs and have been told by my web hosting company to email my blog to ping which will publish it out automatically to everything. I'm a locksmith by trade and computers aren't the tool I use the most, so basic knowledge of computers yes but still very much learning.
    Cheers

  • ITunes rejected my podcast - help with resubmitting

    Hi there! First off I'd like to say that I have "minimal" expertise with podcasts, but have successfully been podcasting for a little over a year now. I'm a DJ and make podcasts of my DJ mixes for promotional use (like many of the 100s that are listed in the iTunes Music Store). I've tried a few times to list my podcast in the ITMS and every time it has been rejected with no specific reason stated (just the generic reasons given to everyone I'm sure). The ITMS did at one point have my podcast come up in it's search results but it never actually worked in allowing someone to subscribe to my podcast. I contacted the ITMS and they have since removed the search results.
    I am trying to resubmit my podcast for approval and now I keep getting an error that the feed has already been submitted. I contacted the ITMS support team and they suggested the following:
    "I also know that when podcasters receive a message that the feed has already been submitted, the iTunes Store is detecting that the podcast is a duplicate. You'll need to follow these steps to resubmit the podcast after making some changes:
    1) Change the title and link fields of your RSS feed to something other than what they are now.
    2) Resubmit the podcast feed via iTunes.
    3) Once you have successfully submitted the podcast, you can change the title and link fields back to what they were."
    I do not know anything about coding and/or XML and use a 3rd party application called Feeder to update my XML file.
    Could someone PLEASE help me? I've been trying to get help with this for many months now, but kept posting under the GarageBand section. I'm thinking I'll get much more intelligent and applicable help over here.
    My podcast is located at http://www.auralpleasuresmusic.com/. The Feed link is http://idisk.me.com/keith_bowden/Public/AuralPleasures.xml (which as you can tell by the URL I use my MobileMe account to host).
    If there is any other information that will help with solving this please let me know and I will provide it.
    Thank you!
    Sincerely,
    Keith

    Your site is produced in iWeb and this will produce a podcast feed for you - perhaps that's how you are starting. The 'auralpleasures' text underneath the logo on your web page has a link to the same feed at feedburner.
    The feed you give the URL for, on your iDisk, has, when downloaded, the filename AuralPleasures.xml.rss - you would do better to remove the .rss extension. However the feed can be subscribed to manually in iTunes. When examined in FeedValidator it says the feed is valid but comments 'Feeds should not be served with the "application/octet-stream" media type' - this may possibly arise from the double extension. However it's quite likely that this is not causing your problem
    There is a bug in the iTunes Store whereby if a podcast is rejected and resubmitted it claims the podcast has already been submitted. In order to get round this you should change the name slightly - you could do this in iWeb and work on from there - for example call it 'Aural-Pleasures'. This would change both the title and the feed filename, and so would make it look like a new feed; then you should be able to resubmit it. I can't advise on how Feeder comes into this.
    This leaves the matter of why your podcast was rejected. Reasons for removal include technical problems (probably not the case here), illegal or objectionable material (again, as far as I can see not the case either) or copyright violation.
    The content of the episodes is 'mixes' and I would hazard a guess that the most likely explanation for your podcast's removal is that the iTunes Store is concerned that you are including copyright material for which you don't have either written permission from the copyright owner or a valid podcast licence from a recognized authority. If this is their concern, and you don't have such clearance, they are not likely to allow you to post your podcast (because under some jurisdictions they may be regarded as co-publishers and liable to the same civil suits as you might be).
    If you do have clearance you need to make this clear to them, though I'm not sure how you can do this other than by contacting Support again, emphasizing the point, and hoping that they respond constructively.

  • How do I solve simultaneous equation with 3 unknowns ?

    I need to solve simultaneous equations with 3 unknowns . Can any body help out on how to go about this? Thanx.

    You did not specify what kind of equations you have....
    Are your equations linear? Check the linear algebra palette and a look at "solve linear equations:.
    LabVIEW Champion . Do more with less code and in less time .

  • My icloud activation lock is ON my iphone, which requires an activation login to access the homescreen, but when i log in with the apple ID on the phone, it says the apple ID is not meant to unclock this iphone 5 ios 8.0.2. please help me solve this.

    My icloud activation lock is on my iphone, which requires an activation login to access the homescreen, but when i log in with the apple ID on the phone, it says the apple ID is not meant to unclock this iphone 5 ios 8.0.2. please help me solve this.

    Yes the phone belongs to me. It was purchased from United Kingdom Vodafone to West Africa, i had to factory unlock to use any sim in it. so it belongs to me. I did the activation myself, now after updating my iphone to the latest update, it required a user id and password to activate the phone, but anytime i enter the details, it tells me the user Id is not correct but the password is correct..

  • I have problem with daq..when it is connected with laptop it asks for all the options like sampling rate etc..It displays building VI and it stops..it is not processing further..cau u plz help to solve this problem

    i hav problem with daq initialisation...plz help to solve the above mentioned issue

    Hi muthu,
    we also have a problem: to less information…
    - What is connected to your laptop?
    - What is "it" in "it displays building VI"? Do you use the DAQ Assistent ExpressVI?
    - What means "plz"?
    And could you please put less text in the title of your message and more text (with relevant information) into the message body?
    Best regards,
    GerdW
    CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
    Kudos are welcome

  • Hello. the last month i face a problem with youtube at my macbook. most videos stop playing after maybe 20 - 25 sec. the same time the time bar stops moving. could you help me solve the problem? thank you

    hello. the last month i face a problem with youtube at my macbook. most videos stop playing after maybe 20 - 25 sec. the same time the time bar stops moving. could you help me solve the problem? thank you

    hello. the last month i face a problem with youtube at my macbook. most videos stop playing after maybe 20 - 25 sec. the same time the time bar stops moving. could you help me solve the problem? thank you

Maybe you are looking for

  • Advice for settip up a SSD for my boot disk

    I am running an early 2008 Mac Pro 2x2.8 Quad-Core Xeon machine. I currently have 2 1TB drives. I would like to put install a Solid State drive as my boot disk and switch the current 1TB boot disk to another bay for a total of 3 drives. Can anyone ad

  • Java Studio Creator 2

    I have downloaded the Creator2 binary for both Solaris and Linux, but I have not been able to get into the web site to provide feedback. Can someone help me.

  • HT4623 i down loaded ISO 7.0 NOW ISO  7.O.3 & ISO 7.0.4 BOTH FAILED TO LOAD

    I HAVE DOWN LOADED ISO 7.O......NOW I CAN'Y DOWN LOAD ISO 7.03 AND ISO 7.04. UPDATES BOTH START TO DOWN BUT THEN THEY BOTH FAIL TO INSTALL .

  • ITunes 8 taking FOREVER ( 12 hours) to process artwork thumbnails

    Anybody else seeing this? Its taking forever to process the artwork thumbnails. It looks like its going out on our shared drive and processing all the media on all the computers on the network (~300GB). Or at least those that are shared. I can't tell

  • Posiible to limit query time for any one query

    Hi, Using 11.2.0.3 We have a third-party web-based reporting tool where sql queries are initiated on the database- sometimes the user kills the browser session and query still runs on the database. Is it possible ata dtabase level to set max time any