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Codecogs.com is a one-stop website for technical computing. It is an open-source C/C++ software component database, from which scientific, engineering and financial applications can be built. It is also a forum for sharing ideas, posting problems and helping others find solutions.
If you need a piece of code: Search our database to see if it is already there. If you can't find what you are looking for you can place a request on the website and other developers can bid to do the work for you. You then decide which bid to accept. Click here for requesters FAQ's.
If you are a developer: As a developer you can earn money and benefit from CodeCogs.com in two ways:
We have chosen to develop all of our software modules in C/C++ because it can be optimised to produce high performance numerical components, while also being easily integrated into all of the major development environments (from C#, VB, Fortran, Perl and R to Excel). We have carefully structured all component code to facilitate the easiest possible integration into your projects - often just 'copy and paste'.
To easy the use of this code in other .NET languages we have created wrappers for most components that can be downloaded along with the project files to allow this code to be very quickly integrated with Visual Basic, C# and any other .NET language.
We have tried to keep searching the cogs as simple as possible. You can either browse them directly via the drop down lists on the left hand side of the page, or type a phrase into the search engine at the top left of the screen. If you know the module that you want then type the category and name into the search engine and if this uniquely identifies a component you will be taken directly to it. As an example try 'bessel/i/i'.
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No. You are free to look around the site without registering. However, if you would like to start using some of the site's features you will need to register. We only require a username, password and email address for this. We take the security of your details very seriously and never pass them on without your consent. You can also un-register at any time.
Once you are registered you can:
You can un-register from the CodeCog.com at any time. Goto your account setting page under Contact Details and follow the intructions in the top right
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CodeCogs contains millions of lines of code that have taken many hours to develop. While we would ideally like to provide this information of a free basis, we also need to ensure that there are funds to develop and expand the library, while also merely maintaining the existing infrastructure.
Therefore we have decided to introduce a flat annual fee that gives users access to all the GPL (free) licensed software, and also a large discount on any commercial licences they buy. Alternatively users can contribute in some way to the development of CodeCogs, then the annual fee will be waved or refunded (as appropriate). Example constributions include:
When you feel you have submitted enough, send evidence of your contributions to Free Associate Membership. We'll review each request on its own merrits. Our decision is final and we may allocate membership for long or less that a year as we feel appropriate.
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By clicking the "My Cogs" tab at the top of the page, you will be able to view and modify all details that relate to your account. The local menu on the left side has options for adjusting your home page (including your photo) and private account settings (password, email, address etc).
From the My Cogs areas you can also view all the licences you own, transfer funds, download your code, review bids etc.
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An overview of the agreements can be viewed here.
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The forum is a place where people can share views, send messages, post comments and help others with their technical problems. To access, simply click on the 'Forums' tab on the main menu bar.
The forum system is also integrated into the bottom of all component and reference pages allowing you to instance express your views about that page. We would encourage all comments and questions.
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Nothing. The majority of the code on the database is free to download and use under the terms of the GNU General Public Licence. However, if you intend to use the code for profit, you must buy a Commercial Licence.
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At CodeCogs.com, we respect copyright and all other intellectual property rights. As a result, we have two basic types of licence that we distribute code under:
For details on licensing please visit our licence information page.
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There are several ways that you can access and download code that you have a licence for. Probably the easiest method is by going to the "My Downloads" page on the "My Cogs" tab. Here you will see a list of all of the licences that you own along with the licence types you own.
Similar download buttons are also shown at the top of the each component page that you own licences for. Look for them next to the shoping cart buttons in the top right of each page.
In general you are able to download the source code either as a single text file (e.g. "name.h") or as a .zip file that contains the text file (or files if there are sub units). '.h' is a C/C++ header file. It can be opened in most text editors (e.g. text pad) or C compilers. This makes it easy for you to "cut-n-paste" it into anything that you are writing. You can also download your excel add-ins and .NET wrappers from this page.
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We use a range of financial systems to transfer funds to and from your CodeCogs account. You are free to move funds in or out of this account at any time. CodeCogs does not charge for this, although PayPal does require a service charge (typicalled 3.4%). Your CodeCogs account is also used:
Each time you purchase a licence we will verify if you have sufficient funds in your account to pay for the transaction. If you do not have the amount needed, the difference to be transferred will be calculated. It is possible to also transfer "Additional Funds to add to my CodeCogs Account" at this point, thereby avoiding the complications of having to fund your account during latter purchases.
CodeCogs will never transfer funds out of your account without your authorisation. You will be informed of all transactions.
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Any details of a sensitive nature are stored encrypted and stored in a secure area of our database.
We use "md5" cryptography to authenticate all passwords and prevent unauthorised access to accounts.
We never released any details to any 3rd parties - except under you permission (i.e. when making transferring money).
CodeCogs, through its parent company Zyba Ltd, is governed by the UK Data Protection Act 1998: registration number is Z9501850.
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On the My Contact Details page you will see a drop down box that gives you a selection of different currencies. This will convert all prices across the site into that currency, thus enabling you to better view and compare prices. It should be noted though that CodeCogs.com is based in the UK and all final transactions will carried out in British Pounds. This means that when you finally checkout a conversion will be done and you will be charged the equivalent amount in British Pounds. It does not affect the price you pay.
Note: Exchange rates vary. All prices shown, if not in British Pounds, will be converted using the exchange rate figures for that day. This means that prices may appear to vary from one day to the next if you are not viewing the site in British Pounds. The official value will always be the price in British Pounds.
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If you have any further questions, please feel free to contact a member of the CodeCogs.com team directly: General Enquiries.
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For any piece of code that is in the public domain (under the GNU General Public Licence ) is not required to be supported - although many developers will help you for free. However, if you purchase a Commercial Licence for a piece of code, the developer is required to maintain the code and respond to errors or bugs that you raise. If for some reason they cannot do this then we will take over this role and guarantee support. In almost all cases were an error is reported you will be refunded any monies you have paid.
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Various pieces of code on the site require the use of extra 'bits' of code to work correctly. We call these extra bits 'sub-units'. Each module shows a list of all subunits it requires near the top left of the display. The combined price for everything is then calculated automatically.
If you already own a licence for a sub-unit you will not be charged for it again. The ability of CodeCogs to break complex suite of function into their atomic components is what seperates the CodeCogs from most other libraries - allowing you to download only what you need and nothing more.
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