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Why are variables “i” and “j” used for counters?
...", so until someone produces an answer that goes back further, this is the best. It does at least speculate why it's used in mathematics. A proper mathematical historian could find out, maybe using a binary chop. Euclid didn't use it, I bet von Neumann did. How about Cauchy? He used indexes a lot
...
C++ display stack trace on exception
... report the stack trace to the user if an exception is thrown. What is the best way to do this? Does it take huge amounts of extra code?
...
Is there a wikipedia API just for retrieve content summary?
...</p>",
"namespace": {
"id": 0,
"text": ""
},
"wikibase_item": "Q549037",
"titles": {
"canonical": "Stack_Overflow",
"normalized": "Stack Overflow",
"display": "Stack Overflow"
},
"pageid": 21721040,
"thumbnail": {
"source": "https://upload.wikimedia.org/wi...
What is the Haskell response to Node.js?
... It's not a separate issue. If this question is a genuine search for the best tools for the job in Haskell, or a check whether excellent tools for the job exist in Haskell, then the implicit assumption that multi-threaded programming would be unsuitable needs to be challenged, because Haskell does...
Can “using” with more than one resource cause a resource leak?
... place at IL_0012. At first glance, this does appear to allocate the first item in unprotected code. However, notice that the result is stored in location 0. If the second allocation then fails, the outer finally {} block executes, and this fetches the object from location 0, i.e. the first allocati...
MySQL, update multiple tables with one query
...a join like so:
UPDATE table1,table2 SET table1.col=a,table2.col2=b
WHERE items.id=month.id;
And then just send this one query, of course. You can read more about joins here: http://dev.mysql.com/doc/refman/5.0/en/join.html. There's also a couple restrictions for ordering and limiting on multiple...
How to create a HashMap with two keys (Key-Pair, Value)?
...e hashCode() should return int values that tend to be rare, unique at it's best. Use something like this:
public int hashCode() {
return (X << 16) + Y;
}
This is fast and returns unique hashes for keys between -2^16 and 2^16-1 (-65536 to 65535). This fits in almost any case. Very rarely y...
How to make an array of arrays in Java
...s possible to write a List decorator that only accepts a certain number of items.
– Sean Patrick Floyd
Nov 29 '12 at 9:56
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ASP.NET MVC Custom Error Handling Application_Error Global.asax?
...a string parameter error . Using or modifying the code below.
What is the best/proper way to pass the data to the Error controller for processing? I would like to have a solution as robust as possible.
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Is there common street addresses database design for all addresses of the world? [closed]
...res of the world, just how in my country is structured :) so which is the best and common database design for storing street addresses? It should be so simple to use, fast to query and dynamic to store all street addresses of the world which is identifying just by one id Thanks a lot
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