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ArithmeticException: “Non-terminating decimal expansion; no exact representable decimal result”
...5 = 3
2.7 = 3
You can check the RoundingMode information here: http://www.javabeat.net/precise-rounding-of-decimals-using-rounding-mode-enumeration/
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...
“The 'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine” Error in importing
...
I had no luck until I installed the 2010 version link here:
https://www.microsoft.com/en-us/download/details.aspx?id=13255
I tried installing the 32 bit version, it still errored, so I uninstalled it and installed the 64 bit version and it started working.
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cocktail party algorithm SVD implementation … in one line of code?
....fi/ica/cocktail/cocktail_en.cgi.
reference for implementation is http://www.cs.nyu.edu/~roweis/kica.html
ok, here's code -
[x1, Fs1] = audioread('mix1.wav');
[x2, Fs2] = audioread('mix2.wav');
xx = [x1, x2]';
yy = sqrtm(inv(cov(xx')))*(xx-repmat(mean(xx,2),1,size(xx,2)));
[W,s,v] = svd((repmat(...
How to split a string in Haskell?
...Remember that you can look up the definition of Prelude functions!
http://www.haskell.org/onlinereport/standard-prelude.html
Looking there, the definition of words is,
words :: String -> [String]
words s = case dropWhile Char.isSpace s of
"" -> []
...
BLE（四）嗅探工具 - 创客硬件开发 - 清泛IT社区，为创新赋能！
文章源自：https://www.gandalf.site/2018/11/ble_26.html
商业级的Ellisys BEX400侦听工具最为符合对BLE流量捕获及分析的要求，然而售价过于昂贵；
其次，作为开源硬件且配有混杂模式追踪的“超牙”设备——Ubertooth One拥有二次开发和嗅...
Convert UTC date time to local date time
... a datetime in the standardized ISO 8601-format.
More info here:
http://www.w3.org/TR/NOTE-datetime
https://en.wikipedia.org/wiki/ISO_8601
IN this case the server would return '2011-06-29T16:52:48.000Z' which would feed directly into the JS Date object.
var utcDate = '2011-06-29T16:52:48.000Z'...
How to extract year and month from date in PostgreSQL without using to_char() function?
...6 20:38:40'),
date_part('year', timestamp '2001-02-16 20:38:40')
http://www.postgresql.org/docs/8.0/interactive/functions-datetime.html
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follo...
mysqldump - Export structure only without autoincrement
...cript: db_bkp.sh
#!/bin/sh
filename="db_structure.sql"
backupfolder="/var/www/"
fpath="$backupfolder/$filename"
usr="DBUSER"
pass="DBPASS"
db="DBNAME"
mysqldump --user=$usr --password=$pass --no-data $db | sed 's/ AUTO_INCREMENT=[0-9]*//g' > "$fpath"
Then I added this to crontab:
30 5 * * * s...
Remove blank lines with grep
... how/why this works, I recommend reading up on regular expressions. http://www.regular-expressions.info/tutorial.html
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...
SVN upgrade working copy
...a bit, I found what seems to be the equivalent for Windows users:
http://www.rqna.net/qna/mnrmqn-how-to-find-all-svn-working-copies-on-win-xp.html
See the answer by Alexey Shcherbak halfway down the page.
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