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How do I get currency exchange rates via an API such as Google Finance? [closed]
...ur answers.
Free currencyconverterapi:
Rates updated every 30 min
API key is now required for the free server.
A sample conversion URL is: http://free.currencyconverterapi.com/api/v5/convert?q=EUR_USD&compact=y
For posterity here they are along with other possible answers:
Yahoo finance API ...
Why do we have to normalize the input for an artificial neural network?
It is a principal question, regarding the theory of neural networks:
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JSON, REST, SOAP, WSDL, and SOA: How do they all link together
...really understand how they all linked together. As far as my understanding is:
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What does the thread_local mean in C++11?
...confused with the description of thread_local in C++11. My understanding is, each thread has unique copy of local variables in a function. The global/static variables can be accessed by all the threads (possibly synchronized access using locks). And the thread_local variables are visible to all ...
What does functools.wraps do?
In a comment on this answer to another question , someone said that they weren't sure what functools.wraps was doing. So, I'm asking this question so that there will be a record of it on StackOverflow for future reference: what does functools.wraps do, exactly?
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Save icon: Still a floppy disk? [closed]
I'm working on a project where the user is able to save their work (most likely to the HDD but also possibly any other media, including floppy disks). Sure, the popular File > Save option is there but what about a toolbar button?
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Assign null to a SqlParameter
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The problem is that the ?: operator cannot determine the return type because you are either returning an int value or a DBNull type value, which are not compatible.
You can of course cast the instance of AgeIndex to be type object which...
Entity Framework - Code First - Can't Store List
... be saved to a different table) or do some string processing to save your list as a string and populate the list after the entity is materialized.
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Function return value in PowerShell
...oped a PowerShell function that performs a number of actions involving provisioning SharePoint Team sites. Ultimately, I want the function to return the URL of the provisioned site as a String so at the end of my function I have the following code:
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If strings are immutable in .NET, then why does Substring take O(n) time?
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UPDATE: I liked this question so much, I just blogged it. See Strings, immutability and persistence
The short answer is: O(n) is O(1) if n does not grow large. Most people extract tiny substrings from tiny strings, so how the complexity gr...