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how to solve “ruby installation is missing psych” error?
I used rvm to install ruby 1.9.3. even though it was successfully installed, it complained about libyaml. and now every time i wanna install a gem (say rails) this warning shows up:
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Get characters after last / in url
...o get the characters after the last / in an url like http://www.vimeo.com/1234567
8 Answers
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How do I calculate square root in Python?
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10 Answers
10
Active
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How to avoid scientific notation for large numbers in JavaScript?
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115
There's Number.toFixed, but it uses scientific notation if the number is >= 1e21 and has a ...
Design patterns or best practices for shell scripts [closed]
...l:: -- "$@"`
if test $? != 0
then
echo "unrecognized option"
exit 1
fi
eval set -- "$getopt_results"
while true
do
case "$1" in
--config_file)
CommandLineOptions__config_file="$2";
shift 2;
;;
--debug_level)
CommandLineOp...
Convert a 1D array to a 2D array in numpy
I want to convert a 1-dimensional array into a 2-dimensional array by specifying the number of columns in the 2D array. Something that would work like this:
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How to get multiple counts with one SQL query?
...stributor_id,
count(*) AS total,
sum(case when level = 'exec' then 1 else 0 end) AS ExecCount,
sum(case when level = 'personal' then 1 else 0 end) AS PersonalCount
FROM yourtable
GROUP BY distributor_id
share
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In c# is there a method to find the max of 3 numbers?
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10 Answers
10
Active
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What are the GCC default include directories?
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191
In order to figure out the default paths used by gcc/g++, as well as their priorities, you nee...
How to remove duplicate white spaces in string using Java?
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edited Oct 29 '16 at 4:20
answered Oct 18 '10 at 12:13
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