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  • Speed up math code in C# by writing a C dll?

    - by Projectile Fish
    I have a very large nested for loop in which some multiplications and additions are performed on floating point numbers. for (int i = 0; i < length1; i++) { s = GetS(i); c = GetC(i); for(int j = 0; j < length2; j++) { double oldU = u[j]; u[j] = c * oldU + s * omega[i][j]; omega[i][j] = c * omega[i][j] - s * oldU; } } This loop is taking up the majority of my processing time and is a bottleneck. Would I be likely to see any speed improvements if I rewrite this loop in C and interface to it from C#?

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  • Returning superclass of return type from remote EJB method

    - by fish
    Let's say I have remote interface A: @Remote public interface A { public Response doSomething(); } And implementation: @Stateless public class B implements A { public BeeResponse doSomething() {...} } Where: BeeResponse extends Response. Response is located in the EJB-API jar and BeeResponse is in the implementation jar. Response and BeeResponse have different serialVersionUID. My assumption is that the unmarshalling of the response from B will fail, am I correct?

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  • Why bother to limit the types imported from a python package?

    - by Fast Fish
    When using many IDEs that support autocompletion with Python, things like this will show warnings, which I find annoying: from eventlet.green.httplib import BadStatusLine When switching to: rom eventlet.green.httplib * The warnings go away. What's the benefit to limiting imports to a specific set of types you'll use? Is the parsing faster? Reduces collisions? What other point is there? It seems the state of python IDEs and the nature of the typing system makes it hard for many IDEs to fully get right when a type import works and when it doesn't.

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  • Passing Variable or Something to Iframe Parent PHP/JS/Html

    - by Belgin Fish
    Alright, well this is the deal. I have a page, and then it loads an iframe. When anything inside the iframe is clicked, the main page (iframe parent) just reloads. How can I have it, so that if the iframe parent is reloaded from a click inside the iframe that a certain boolean or something is passed, displaying something different. Thanks

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  • Mod Rewriting Image Location Not Working Very Well

    - by Belgin Fish
    Hey, I'm trying to mod rewrite the image locations on my site, I'm just using this : rewriteRule ^thumbs/(.*)$ http://site2.com/images/$1 [L] so that I can redirect all image requests going from http://site1.com/thumbs/something to http://site2.com/thumbs/something But only some of the images are loading, and not all of them. Thanks!

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  • How do you create a transaction that spans multiple statements in Python with MySQLdb?

    - by Fast Fish
    I know that with an InnoDB table, transactions are autocommit, however I understand that to mean for a single statement? For example, I want to check if a user exists in a table, and then if it doesn't, create it. However there lies a race condition. I believe using a transaction prior to doing the select, will ensure that the table remains untouched until the subsequent insert, and the transaction is committed. How can you do this with MySQLdb and Python?

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  • Get 10 Most Entered Entries PHP MYSQL

    - by Belgin Fish
    Hi, I'm just wondering if it's possible to retrieve the the most entered entries from the mysql database It's like this : ID - Value Id is auto increment, and value is the text that is being entered, i'd like to have it display the top 10 most entered terms, how could i do that?

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  • Variable name as a string in Javascript

    - by fish potato
    Is there a way to get a variable name as a string in Javascript? (like NSStringFromSelector in Cocoa) I would like to do like this: var myFirstName = 'John'; alert(variablesName(myFirstName) + ":" + myFirstName); --> myFirstName:John -- added I'm trying to connect a browser and another program using JavaScript. I would like to send instance names from a browser to another program for callback method.

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  • Auto Size Embed Code

    - by Belgin Fish
    Hey, I'm just wondering what code I could use to auto change the size of the video being embedded before it gets displayed. Example, I need to have it find all instances of this width="any value" height="any value" and replace them with this width="540" height="405"

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  • Simulate Click Javascript

    - by Belgin Fish
    Hi, I'm just wondering how I can have javascript simulate a click on a element. Currently I have <script type="text/javascript"> function simulateClick(control) { if (document.all) { control.click(); } else { var evObj = document.createEvent('MouseEvents'); evObj.initMouseEvent('click', true, true, window, 1, 12, 345, 7, 220, false, false, true, false, 0, null ); control.dispatchEvent(evObj); } } </script> <a href="http://www.google.com" id="mytest1">test 1</a><br> <script type="text/javascript"> simulateClick(document.getElementById('mytest1')); </script> But it's not working :( Any ideas?

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