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Why does Math.Round(2.5) return 2 instead of 3?
... a .NET bug. C# is the language - it doesn't decide how Math.Round is implemented.
And secondly, no - if you read the docs, you'll see that the default rounding is "round to even" (banker's rounding):
Return ValueType: System.DoubleThe integer nearest a. If the
fractional component of a is ha...
sed command with -i option (in-place editing) works fine on Ubuntu but not Mac [duplicate]
... So just follow the sed -i with single quotes, sed -i '1i export PATH="$HOME/.composer/vendor/bin:$PATH"' $HOME/.bashrc Still does not work for me
– pal4life
May 7 '14 at 14:39
11...
How to keep onItemSelected from firing off on a newly instantiated Spinner?
I've thought of some less than elegant ways to solve this, but I know I must be missing something.
33 Answers
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When to use virtual destructors?
...a solid understanding of most OOP theory but the one thing that confuses me a lot is virtual destructors.
17 Answers
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Purging file from Git repo failed, unable to create new backup
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You have already performed a filter-branch operation. After filter-branch, Git keeps refs to the old commits around, in case something goes wrong.
You can find those in .git/refs/original/…. Either delete that directory and all files within, or...
How to remove leading and trailing whitespace in a MySQL field?
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How to drop columns by name in a data frame
...her indexing or the subset function. For example :
R> df <- data.frame(x=1:5, y=2:6, z=3:7, u=4:8)
R> df
x y z u
1 1 2 3 4
2 2 3 4 5
3 3 4 5 6
4 4 5 6 7
5 5 6 7 8
Then you can use the which function and the - operator in column indexation :
R> df[ , -which(names(df) %in% c("z","u")...
How do I convert a Ruby class name to a underscore-delimited symbol?
How can I programmatically turn a class name, FooBar , into a symbol, :foo_bar ? e.g. something like this, but that handles camel case properly?
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What is Mocking?
... the dictionary you will find that one of the definitions of the word is something made as an imitation.
Mocking is primarily used in unit testing. An object under test may
have dependencies on other (complex) objects. To isolate the behavior
of the object you want to replace the other objects by m...
Vim: Move window left/right?
... @David Wolever, you need to use the upper case letters in this case, something like: Ctrl-W + Shift-L, for example. I think this can be what you are looking for.
– Ricardo Valeriano
Feb 9 '11 at 20:28
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