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Printing hexadecimal characters in C
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You are seeing the ffffff because char is signed on your system. In C, vararg functions such as printf will promote all integers smaller than int to int. Since char is an integer (8-bit signed integer in your case), your chars are being promoted to int via sign-ex...
How to make a background 20% transparent on Android
...of a Textview about 20% transparent (not fully transparent), where there is a color in the background (i.e. white)?
18 An...
what is faster: in_array or isset? [closed]
This question is merely for me as I always like to write optimized code that can run also on cheap slow servers (or servers with A LOT of traffic)
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What does axis in pandas mean?
Here is my code to generate a dataframe:
21 Answers
21
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SQL query return data from multiple tables
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Part 1 - Joins and Unions
This answer covers:
Part 1
Joining two or more tables using an inner join (See the wikipedia entry for additional info)
How to use a union query
Left and Right Outer Joins (this stackOverflow answer is excellent to describe...
Git fetch remote branch
...ecent versions of Git:
git checkout --track origin/daves_branch
--track is shorthand for git checkout -b [branch] [remotename]/[branch] where [remotename] is origin in this case and [branch] is twice the same, daves_branch in this case.
For Git 1.5.6.5 you needed this:
git checkout --track -b d...
How to get a string after a specific substring?
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The easiest way is probably just to split on your target word
my_string="hello python world , i'm a beginner "
print my_string.split("world",1)[1]
split takes the word(or character) to split on and optionally a limit to the number of spl...
When is it practical to use Depth-First Search (DFS) vs Breadth-First Search (BFS)? [closed]
...nd location of solutions (aka searched-for items).
If you know a solution is not far from the root of the tree, a
breadth first search (BFS) might be better.
If the tree is very deep and solutions are rare, depth first search
(DFS) might take an extremely long time, but BFS could be faster.
If th...
Why must a nonlinear activation function be used in a backpropagation neural network? [closed]
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The purpose of the activation function is to introduce non-linearity into the network
in turn, this allows you to model a response variable (aka target variable, class label, or score) that varies non-linearly with its explanatory variables
non-linear means that...
Loading cross-domain endpoint with AJAX
...trying to load a cross-domain HTML page using AJAX but unless the dataType is "jsonp" I can't get a response. However using jsonp the browser is expecting a script mime type but is receiving "text/html".
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