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Why does Clojure have “keywords” in addition to “symbols”?
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Brian CarperBrian Carper
64.9k2525 gold badges154154 silver badges164164 bronze badges
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Correct way to use StringBuilder in SQL
...have been 26 to start with, then doubled to 52, then 104, 208, 416, 832, 1664, 3328, and finally 6656). Only significant if this is a hotspot, but still, if you know in advance... :-)
– T.J. Crowder
Jan 4 '12 at 12:24
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NumPy: function for simultaneous max() and min()
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as of numpy 1.8 min and max are vectorized on amd64 platforms,on my core2duo numpy performs as well as this fortran code. But a single pass would be advantageous if the array exceed the size of the larger cpu caches.
– jtaylor
Mar 7 '1...
With arrays, why is it the case that a[5] == 5[a]?
...t back in the 70's when C was designed, computers didn't have much memory (64KB was a lot), so the C compiler didn't do much syntax checking. Hence "X[Y]" was rather blindly translated into "*(X+Y)"
This also explains the "+=" and "++" syntaxes. Everything in the form "A = B + C" had the same c...
Rails: FATAL - Peer authentication failed for user (PG::Error)
...versions are available
psql=# select VERSION();
PostgreSQL 9.1.13 on x86_64-unk.... # so version is 9.1
Now Open postgres user
vim /etc/postgresql/9.1/main/pg_hba.conf
9.1 is version return form upper command
and replace
local all postgres ...
How to concatenate two MP4 files using FFmpeg?
...ng them and then trying to encode that concated .ts file. The files are h264 and aac encoded and I'm hoping to keep the quality the same or as close to original as possible.
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Autoincrement VersionCode with gradle extra properties
...n properties would need to look like this:
VERSION_NUMBER=1
VERSION_BUILD=645
VERSION_PATCH=1
Obviously start with 0. :)
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facebook: permanent Page Access Token?
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643
Following the instructions laid out in Facebook's extending page tokens documentation I was ab...
Creating a textarea with auto-resize
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panzipanzi
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More elegant way of declaring multiple variables at the same time
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Chris LutzChris Lutz
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