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How to debug Lock wait timeout exceeded on MySQL?
...ervation count 9014315, signal count 7805377
Mutex spin waits 0, rounds 11487096053, OS waits 7756855
RW-shared spins 722142, OS waits 211221; RW-excl spins 787046, OS waits 39353
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LATEST FOREIGN KEY ERROR
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110507 21:41:35 Transaction:
TRANSACTION 0 60...
Floating point vs integer calculations on modern hardware
... vy32
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answered Mar 31 '10 at 4:05
DanDan
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Use of 'prototype' vs. 'this' in JavaScript?
...s is set when they are constructed with new. Can't believe this really got 87 upvotes :-(
– Bergi
Sep 18 '12 at 18:56
8
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What is (functional) reactive programming?
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Gilles 'SO- stop being evil'
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answered May 25 '12 at 14:52
user712092...
“Keep Me Logged In” - the best approach
...
BabaBaba
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...
Two-way encryption: I need to store passwords that can be retrieved
...e is 96 bytes. So there's at best a 80 character overhead, and at worst a 87 character overhead...
I hope that helps...
Note: 12/11/12: I just updated this class with a MUCH better encryption method, using better derived keys, and fixing the MAC generation...
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How to select rows from a DataFrame based on column values?
...A'].values == 7
pd.DataFrame(d1.values[mask], d1.index[mask], d1.columns)
87 µs ± 5.12 µs per loop (mean ± std. dev. of 7 runs, 10000 loops each)
We cut the time in half.
mask alternative 3
@unutbu also shows us how to use pd.Series.isin to account for each element of df['A'] being in a se...
Understanding REST: Verbs, error codes, and authentication
...tion/xml+usersearchcriteria"/>
<link href="http://example.com/AW163FH87SGV" rel="search" type="application/xml+usersearchcriteria"/>
So, focus on your resources. Focus on their state transitions in the application and how that's best achieved.
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Hidden Features of MySQL
...l
UDF functions
http://www.koders.com/cpp/fid10666379322B54AD41AEB0E4100D87C8CDDF1D8C.aspx
http://souptonuts.sourceforge.net/readme_mysql.htm
DataTypes:
http://dev.mysql.com/doc/refman/5.1/en/storage-requirements.html
http://www.informit.com/articles/article.aspx?p=1238838&seqNum=2
htt...
User recognition without cookies or local storage
... [Battery Status API] => -1
)
[score] => 0.74157303370787
[diff] => 0.1685393258427
[base] => 8.9
)
If Debug = true you would be able to see Input (Sensor & Desired), Initial Weights, Output (Sensor, Sum, Network), Error, Correction and Final Weights.
+----+-...