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Declaration/definition of variables locations in ObjectiveC?
... iProtected2 = @"iProtected2";
iPublic = @"iPublic";
_iPublic2 = @"iPublic2";
iNotVisible = @"iNotVisible";
_iNotVisible2 = @"iNotVisible2";
iNotVisible3 = @"iNotVisible3";
}
return self;
}
@end
Note that the iNotVisible variables are n...
What is the difference between float and double?
... of the value 2^24 followed by 2^24 repetitions of the value 1. Summing in order produces 2^24. Reversing produces 2^25. Of course you can make examples (e.g. make it 2^25 repetitions of 1) where any order ends up being catastrophically wrong with a single accumulator but smallest-magnitude-first is...
How can I apply a function to every row/column of a matrix in MATLAB?
...A = [1 2 3;
4 5 6;
7 8 9]
B = [0 1 2]
You want a function power_by_col which returns in a vector C all the elements in A to the power of the corresponding column of B.
From the above example, C is a 3x3 matrix:
C = [1^0 2^1 3^2;
4^0 5^1 6^2;
7^0 8^1 9^2]
i.e.,
C = [1 2 9;
...
Create a tag in a GitHub repository
... tab
Click on edit button for the release
Provide name of the new tag ABC_DEF_V_5_3_T_2 and hit tab
After hitting tab, UI will show this message: Excellent! This tag will be created from the target when you publish this release. Also UI will provide an option to select the branch/commit
Select bra...
float64 with pandas to_csv
...nts, it is a general floating point problem.
However you can use the float_format key word of to_csv to hide it:
df.to_csv('pandasfile.csv', float_format='%.3f')
or, if you don't want 0.0001 to be rounded to zero:
df.to_csv('pandasfile.csv', float_format='%g')
will give you:
Bob,0.085
Alice,...
Does MySQL included with MAMP not include a config file?
...eports:
Default options are read from the following files in the given order:
/etc/my.cnf /etc/mysql/my.cnf /Applications/MAMP/conf/my.cnf ~/.my.cnf
Copy one of the variants in /Applications/MAMP/Library/support-files/ to one of the locations in mysqld's search order above, and you should be...
What is difference between XML Schema and DTD?
...w support for namespaces while DTD does not.
XML schemas define number and order of child elements, while DTD does not.
XML schemas can be manipulated on your own with XML DOM but it is not possible in case of DTD.
using XML schema user need not to learn a new language but working with DTD is diffic...
Init method in Spring Controller (annotation version)
... @PostConstruct since autowiring/injection by setter was not yet done. The order is constructor, @PostConstruct then autowired setters. I solved it with @EventListener annotation which wil run last and at the "same" time for all beans. The example shows implementation of InitializingBean aswell.
I ...
Ruby on Rails: How do I add a not null constraint to an existing column using a migration?
... Add column with default value
2) THEN: Remove default value
add_column :orders, :items, :integer, null: false, default: 0
change_column :orders, :items, :integer, default: nil
share
|
improve th...
What is the optimal algorithm for the game 2048?
...ructures in which adjacent tiles are decreasing in value, but of course in order to merge, adjacent tiles need to be the same value. Therefore, the smoothness heuristic just measures the value difference between neighboring tiles, trying to minimize this count.
A commenter on Hacker News gave an int...