vector expression evaluation

Similar Questions

• simple expression evaluator

  Hi all
  
  need help with an expression evaluation:
  user enters a string like "x * x + dx * dy" or 'x * dx - dy * y' and I Flash on hidden that in an actionscriptline in the code, it looks like:
  
  x = 3;
  DX = 0.6;
  DY = 0.1;
  AA = x * x + dx * dy;
  trace (AA);
  
  and the result would be: 9.06
  
  Now my problem is to convert the operator.
  Anyone for a solution for this newbie?
  
  thnx
  Rob
  

  OK, thnx, I will follow your advice

  Rob

• Expression evaluation limits step

  I'm just trying to understand the point at which the step limits expression is evaluated. I'm trying to define the limits of a test of numerical limit based on an expression. I'm passing the context of the sequence for the LabVIEW code module so that the VI may determine the limits to set the colors of parts of pass/fail indicator and for certain other purposes.

  The problem I have is that it resembles the step limits expression has not been evaluated at the time wherever the context of the sequence is passed to the VI, which means that the calculated limits are not available. Is this correct? If so, does anyone have suggestions as to how I might be able to get around this?

  Thank you.

  Adam

  Hi Adam,.

  The following graph shows the order of execution of the teststand steps.

  

  I believe that the evaluation of the expression limited on "steps of numerical limit test" occurs during the evaluation of the expression status (so the last part of the stage).

  Another solution would be to create your own custom step type and include a custom "step first substep for your personalized step step" (I think I just broke the world record for most uses of the word 'no' in a sentence )

  However, I think that you've already found the solution more practice/simple/elegant. Yes, Bravo to you!

  Thanks for your time. I hope that gives a little clarification.

  Best wishes

• Do in Expression evaluation

  Do everything in
  ((

  Val (locals. ((DailySelfCalTimeMsgBoxInputHours)<0&& val(locals.dailyselfcaltimemsgboxinputhours)="">23)). ((Val (Locals.DailySelfCalTimeMsgBoxInputMinutes)<0&& val(locals.dailyselfcaltimemsgboxinputminutes)="">59)). RunState.Sequence.Main ["Message Popup"]. Result.ButtonHit! = "2"

  MSG Box to read at the time of user input
  }

  I have this logic, but do so while the loop was never released.  If I press the button cancel the do while loop is exited.  However, Locals.DailySelfCalTimeMsgBoxInputHours Locals.DailySelfCalTimeMsgBoxInputMinutes meet the requirements above in the Do While expression, the loop never ends.  In the framework of the Expression of Post of Message box, I converted the above string variables of numeric type and display values as expected.  So, I'm not sure why when I try to use Val (String) in the Do While expression, the evaluation does not work as expected.  Can someone shed light on this problem?

  Pseudocode:

  While

  hours < 0="" and="" hours=""> 23

  Or

  minutes < 0="" and="" minutes=""> 59

  Or

  buttonhit <> 2

  end while

  Ok. Hours is never negative and more than 23. Minutes will be never greater than 59 both negative. buttonhit could not be 2. Thus, it seems that you will never get a real on buttonhit.

  I think that either you have you a larger and less reverse, or you need to replace your ANDS by RHA.

  Good luck

  Bob Y.

• Boolean expression evaluation

  Hello

  Flex, 4.0.x

  I came across a strange behavior, by evaluating the following expressions (function):

  public function calculateIsNext():void
  {
       if ( _currentState == "FirstPage" )
       {
            isNext = ((StoreManufacturerCode!='') && hasSelectedProducts);
            dispatchEvent( new Event( "ChangeValidation" ) );
       }
  }
  
  

  the problem lies on the line where the proximity is calculated, whenever I stop here during debugging, the two part of the expression are real and just leave this function after this line, dispatchEvent is not managed.

  I got this line also with if else statements, where proximity = true, never evaluated even the two parts of the expression are ture

  Anyone encountered similar behavior?

  r. sandor

  Sometimes, you will see this, if you are using the old code.  Try to delete the contents of bin-debug and then goes to the project > Clean and the cleaning of your project.  You can also see this in functions that may be related, if the underlying code generated decides that the value has not changed.

  HTH;

  Amy

• Stored as varchar expression evaluation

  Hello
  
  I declared a varchar variable and that data stored in this variable are an expression.
  I need to evaluate the expression.
  Y at - it an option to do so.
  For example
  
  v_s_expression: = '10 + 5';
  
  I need to evaluate and get the value in another variable.
  
  I would get the result 15 in the v_n_result variable.
  
  all methods?
  
  Thanks in advance
  Prasanth

     1  declare v varchar2(30) := '5+10';
    2          i number;
    3  begin
    4    execute immediate 'begin :b0 :='||v||'; end;'
    5    using out i;
    6    dbms_output.put_line(i);
    7* end;
  SQL> /
  15
  

• bind variables and expression evaluation

  Hi friends,

  I was looking at a query that uses a bad plan. DB is 11.2.0.3 with active user bind peeking. It is a simplified version showing the problem:

  Select egp.bsn

  , egp.klantnummer as 'Persoonsnummer '.

  , egp.samengesteldenaam as 'Samengesteldenaam '.

  , egp.geboortedatum as 'Geboortedatum.

  of pr_eigenschappen2 egp

  where

  (egp.bsn =: b1 or: b2 is null)

  and rownum < 51

  EGP. BSN is varchar2 (10) and has a high selectivity (almost unique) and is indexed btree. table and index have adequate statistics.

  When it is run with b1: = 928818 and b2: = 928818 (linked both as varchar2 (10)) a full table scan + filter is used on pr_eigenschappen2.

  If the query is changed to

  Select egp.bsn

  , egp.klantnummer as 'Persoonsnummer '.

  , egp.samengesteldenaam as 'Samengesteldenaam '.

  , egp.geboortedatum as 'Geboortedatum.

  of pr_eigenschappen2 egp

  where

  (= egp.bsn: b1 or 928818 a null value)

  and rownum < 51

  
  

  the index on the bsn is used, and the query does not 3.9 seconds but 1 millisecond.
  

  
  

  If I had a choice, the query would be different. I don't want to talk about the reason for the request, I would like to know why the optimizer does not use the index in the first case.
  

  
  

  
  

  Jan-marten,

  as Hoek wrote: "the optimizer must take into account the fact that the bind peut var be null, and then a full crawl is required...". ». For the bsn = part: b1 a systematic index scan range would be a good idea, but for: b1 is null, there is only one relevant case producing a result: NULL IS NULL and this condition the CBO only a full table scan or a full scan of the index taking into account (after all a complete analysis of the index may also be called 'index range scan across the table' - but that would be contrary to the 'Beach' in its name).

  By the way: I think that the trick of gather_plan_statistics is not very useful in the test case since you do not use display_cursor with allstats format. He might even have a negative impact on performance since statistical rowsource are quite expensive - depending on the timing of your OS routine. I think that Mr. Lewis has written something on this effect, in his notebook.

  Concerning

  Martin

• evaluate the expression error

  Hello

  TestStand 4.1, I'm trying to copy a container of FileGlobals to StationGlobals, based on a name.

  The following works, even if the browser of Expression says that it will cause a runtime error because "error in the call for expression int 'Evaluate'. Unexpected token:... »

  Locals.Name = "Name1"

  StationGlobals.TargetContainer = evaluate ("FileGlobals" + Locals.Name + ".") SourceContainer")

  where StationGlobals.TargetContainer and FileGlobals.Name1.SourceContainer are of the same named type.

  I tried to use EvaluateEx(), but found no construction to make it work. What would be the syntactically correct way to do this?

  Thank you

  Peter

  Peter,

  the reason for the 'mistake' the evaluation of the expression at development time, it's that he is a "stacked" expression

  First, you set Locals.Name a new value. I think in your sequence Locals.Name is by default an empty string. Then use this value in another part of the expression.

  Since there is no SequenceContext (no performance), the value of Locals.Name is not actually modified by the first part of the expression leaving the Evaluate() to search for a "FileGlobals" property... SourceContainer. Since two '.' one after another are illegal for search strings, the entire expression evaluation fails.

  This error does not occur during execution, because the first part of the expression does not actually change Locals.Name (for the SequenceContext) to be "Name1", while the second part will result in Evaluate ("FileGlobals.Name1.SourceContainer").

  hope this helps,

  Norbert

• Expression.Evaluate () - how to use with propertyobject?

  Hello

  I have the code in a reminder of model of process and would like to evaluate an expression in the context of Runstate.Caller.

  I found the method

  Expression. Evaluate (evaluationContext, evaluationOptions is EvalOption_NoOptions)

  That's exactly what I need. However, if I have a CallingStep.Expr, which is an expression, I can't access the Evaluate() function. It is not available, only the functions PropertyObjects are.

  How can I throw it's an Expression, so I can access the function Evaluate?

  I really I could do:

  Runstate.CallingStep.Expr.Evaluate (Runstate.Caller, 0x0)

  This returns the expression evaluated in the context of the appellant as a PropertyObject.

  But this isn't the case, need me something to TS know Runstate.CallingStep.Expr is an Expression... even if I add it to the Panel of the watch, it shows that it is an expression...

  Thank you.

  Hello

  Try to use RunState.Caller. AsPropertyObject. EvaluateEx (xxx)

  Hope this helps

  Jürgen

• Is there any built-in method to calculate mathematical expressions in blackberry?

  Hello

  I want to calculate the input given to for example phrase (25 + 48 * 9 + 69) / 3 in the BIRD rule database and display the result in a text box. So there is a built-in method to calculate data expressions?

  Do you mean a mathematical expression evaluator?

  Maybe you can use this:

  http://javadots.blogspot.com/2008/11/arithemetic-expressions-Solver-in-64.html

  http://Web.archive.org/Web/20070205080726/http://oglimmer.de/Java/mathematical_expression_parser.php

• Custom number Converter:-EL Expression

  Hi all

  I use JDeveloper 11.1.2.4.0.

  I have created a number converter to format number fields.

  I've referenced: Jerry on Java: create a custom converter of JSF 1.2 with the attributes and bunch of Red: tag JSP behavior customer personalized ADF Faces 11.1.1 Articles and created as a component of the taglib.

  I put the model to a numeric field based on a value of fields of wages as below

  #{bindings. Salary.inputValue gt 15000?' # 0.000 ': ' {# 0.00 "}".

  Salary is given as partial trigger deposited number and automatic sending is enabled in the salary field.

  I already pay value deposited. The loading of the page, the expression is used and the correct model is visible.

  But if I change the amount of salary not evaluates the expression and model does not change.

  But when refresh my browser tab then the model will change based on the new amount.

  For default converter I found the expression evaluates according to the change in the value of the wage.

  
  

  What I need to know is why EL Expression was not evaluated in the converter of custom number? I do any extra parameter?
  

  Please help me by providing some valuable links & Suggestions

  Thank you and best regards,

  Gijith

  Hi all

  Finally, I solved the problem of my custom number converter.

  It was that didn't save the handler class in the taglib.xml file. That's why expression evaluation works do not.

  After Manager class regitering everything works fine.

  Thank you dvohra21 for your reply.

  Kind regards

  Gijith.

• Free trial help in marketing?

  Just published my application and for sale for 3 days. Up to present only 2 was sold. No reviews and I have no idea if there is any problem or if it is not working properly.

  In any case, I intend to prepare a trial version (just limited do not have no expiration). I would like to know if it will help to make people more aware of its existence.

  Please share your experiences of peers! Other people may find this useful info also.

  Your application is a mathematical expressions evaluator. If its only going to appeal to a niche market very.

  Without making people aware of its existence, do not expect this niche market to find out about it. You should really post on some forums, get some interest there.

  Do not expect to be in the top 25 of the App World. I do not put your app on Earth, I know that well, but if you look at the top 25 App World more than half are games and entertainment remains / utility apps. If you really need to try to market to the right audience. For example to find a forum for, say, mathematicians and then promote - it. That's what I think anyway.

• AF:table - change disabled property of input text according to the value of the attribute line

  Hello

  I use Jdev 12.1.2.

  I have a table with the number of lines.  Each line has a FutureCode attribute and other attribute FutureComments.  I want to make sure FutureComments is disabled unless the FutureCode of this line is is 'OTHER '.

  I tried to go to the text of the FutureComments component in the table and setting the property to the expression for disabled:

  #{row.bindings.FutureCode.inputValue == 'OTHER'? false: true}

  But it does not work.  I messed around with the parameters in the table (distribution of content, immediate change), but I did not get a configuration so that it can work.

  A little more information, the text input component are always disabled.  I also tried using the expression evaluator in the debugger to check the value of my #{row.bindings.FutureCode.inputValue}, but it is null, no doubt because he does not know what line I'm talking about.

  Any idea on this?  Thank you.

  Hello

  There the lov on future code?

  will not have operator you used? Try

  #{row.bindings.FutureCode.inputValue! = 'OTHER'}

  If this does not work

  Try

  #{row.bindings.FutureCode. attributeValue ! = 'OTHER'}

  
  

  Thank you

• FDMEE mapping &lt; white &gt; does not / Jython Script

  Hi all

  Has anyone got the < white > mapping work?  I put it in my SIMILAR mapping and it does nothing.  Any help would be appreciated.

  As a solution, I tried to add an import script to my base file import format.  I want it all empty fields in PKI to convert in [no PIC].  Keep logs process details (see below) gives me an error.  He doesn't seem to like dealing with NULL values.  Here is my script to import of Jython:

  def OracleEBS_ICPNone (strField, strrecord):

  If strfield is not nothing and len (strfield) > 0:

  return "[ICP None]"

  Another thing:

  return strfield

  Error log:

  2014-06-03 14:57:18, 892 [AIF] DEBUG: 105039:EPMERPI - error expression evaluation: OracleEBS_ICPNone (", 725, 100151_C, 000, 16434308.16')

  result: null

  2014-06-03 14:57:18, ERROR 894 [AIF]: 105039:EPMERPI - 105042:EPMERPI - error evaluating script.

  null

  THX,

  Mike

  How are your values of source?

  does not refer to NULL.

  This will work only if the value of your source has a blank space.

  So if you have a map as --> [no PIC]

  and your source is an empty string... it won't

  It won't work if it has a white space (' ')

  For you the script:

  def OracleEBS_ICPNone (strField, strrecord):

  If strfield is not nothing and len (strfield) > 0:

  return "[ICP None]"

  Another thing:

  return strfield

  Jython is case-sensitive: strField <> strfield

  If you want to capture values empty source in PKI:

  def OracleEBS_ICPNone (strField, strRecord):

  # You can cut your source, remove the whitespace on the left/right and then check if the length is zero

  If len (strField.strip () == 0:

  return "[ICP None]"

  Another thing:

  return strField

• PowerCLI 5.5 R2 and SRM - how to check the status of a Recovery Plan?

  I need to write a script that will examine the current status (apparently called a "RunMode") of a Recovery Plan, is the appropriate status (1 = Test, 3 = cleaning), then get a list of all virtual machines in a suitable specific folder and they will light up (wait 15 seconds between move them on to the next). There are reasons why the Recovery Plan cannot be responsible to do, so why do I need to write a script (the reasons have nothing to do with PowerCLI). And I have problems with the first part, determination of status.

  I have this (I won pretty well most of this pure and simple of the blog of Ken Werneburg. Thank you, Ken!) :

  $DR_vCenter = "xxxxxx".

  $SRM = connect-SrmServer-Server $DR_vCenter

  $SRM_API = $SRM. ExtensionData

  $PlanMoRef = $SRM_API. . Moref Recovery.ListPlans () [2]

  (My plan is #2, others their test plans. I checked this by looking at the name of each plan. And all the good things I want is in this 'moref,"apparently...)

  $HistoryMoRef = $SRM_API. Recovery.GetHistory ($PlanMoRef)

  (it's the history of the races of this plan. Here it is the story of the last race)

  $HistoryMoRef.GetRecoveryResult (1)

  
  

  Key: 68835

  Plan: VMware.VimAutomation.Srm.Views.SrmRecoveryPlan

  Name: Recovery_Plan_PHA

  Description:

  StartTime: 15/07/2014 11:03:15

  StopTime: 15/07/2014 11:09:29

  ExecutionTimeInSeconds: 374

  TotalPausedTimeInSeconds: 0

  ResultState: success

  RunMode: CleanupTest

  WarningCount: 0

  ErrorCount: 0

  SO: I understand how to get the history of the plan that I want, and it's more progress. The problem I have is that if the RunMode is a specific value (either "Test" or "Failover", then I need to launch other actions (power of virtual machines.) And I can't seem to do. «$HistoryMoRef.GetRecoveryResult (1).» RunMode"is empty return. I don't know how it is that the value of "CleanupTest".

  How can I query the RunMode, to see if it is a value which I am interested in?

  $HistoryMoRef.GetRecoveryResult (1) | GM

  
  

  TypeName: VMware.VimAutomation.Srm.Views.SrmRecoveryResult

  
  

  Name MemberType definition

  ----                     ---------- ----------

  Equals method Boolean Equals (System.Object, obj)

  GetHashCode method int GetHashCode()

  Type of the method GetType GetType()

  String the ToString ToString() method

  Description property System.String Description {get; set ;}}

  ErrorCount property System.Int32 ErrorCount {get; set ;}}

  ExecutionTimeInSeconds property System.Int64 ExecutionTimeInSeconds {get; set ;}}

  Key key of System.Int32 property {get; set ;}}

  Property System.String name {get; set ;}}

  Plan of property VMware.VimAutomation.Srm.Views.SrmRecoveryPlan {get; set ;}}

  ResultState property VMware.VimAutomation.Srm.Views.SrmRecoveryResultResultState ResultState {get; set ;}}

  RunMode property VMware.VimAutomation.Srm.Views.SrmRecoveryPlanRecoveryMode RunMode {get; set ;}}

  StartTime property System.DateTime StartTime {get; set ;}}

  StopTime property System.DateTime StopTime {get; set ;}}

  TotalPausedTimeInSeconds property System.Int64 TotalPausedTimeInSeconds {get; set ;}}

  WarningCount property System.Int32 WarningCount {get; set ;}}

  Thank you

  Well, I managed to reproduce the problem and to understand what might happen.

  First the error "you can not call a method on an expression evaluated to null." seems to be linked to the "Write-Output"PG ="$pg" line. When I remove the error to go away (I'm not a person of PowerShell so don't know why this is the case).

  The second error (not not being filled seems to be linked to how they make the connection virtual computers SRM.) Specifically, you will need to establish the connection of VC and then do SRM login without specifying the SRM server, let that be determined by searching the SRM recorded with the VC you are connected to.

  The following code worked in my environment when it is connected to the protected so site full of hope that it will work for you as well:

  SE connect-VIServer-Server $protectedSiteVC - user $user-password $pass

  Connect-SrmServer-user $user-password $pass

  Write-Host "implementation details on Protection groups.

  Get-ProtectionGroup | {ForEach-Object

  $pg = $_

  Get-ProtectedVM - ProtectionGroup $pg} | {ForEach-Object

  #Write - Output 'do for each virtual computer.

  $output = "" | Select VmName, PgName

  $_. Vm.UpdateViewData)

  $output. VmName = $_. Vm.Name

  $output. PgName = $pg. GetInfo(). Name

  $output

  } | Format-Table @{Label = 'Name of the virtual computer'; Expression = {$_.} VmName}}, @{Label = 'Protection Group name'; Expression = {$_.} PgName}

  }