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How to write log base(2) in c/c++
... log2 (x) = logy (x) / logy (2)
where y can be anything, which for standard log functions is either 10 or e.
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jQuery posting valid json in request body
...fortunately I'm having a hard time determining first, if this is happening and 2nd what the object looks like that is being sent to the server. All I know is that the server is not parsing what I'm sending.
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How to convert Java String into byte[]?
... = string.getBytes(Charset.forName("UTF-8"));
byte[] b = string.getBytes(StandardCharsets.UTF_8); // Java 7+ only
However the problem you appear to be wrestling with is that this doesn't display very well. Calling toString() will just give you the default Object.toString() which is the class nam...
How to remove part of a string before a “:” in javascript?
...m sit amet";
str = str.substring(str.indexOf(":") + 1);
Or, the .split() and .pop() version:
var str = "Abc: Lorem ipsum sit amet";
str = str.split(":").pop();
Or, the regex version (several variants of this):
var str = "Abc: Lorem ipsum sit amet";
str = /:(.+)/.exec(str)[1];
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How to find if directory exists in Python
...en classes are callable. Also, functions are first-class values in Python, and you can use them without the parentheses notation, like in existing = filter(os.path.isdir(['/lib', '/usr/lib', '/usr/local/lib'])
– phihag
Mar 30 '13 at 7:38
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How do you do natural logs (e.g. “ln()”) with numpy in Python?
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np.log is ln, whereas np.log10 is your standard base 10 log.
Relevant documentation:
http://docs.scipy.org/doc/numpy/reference/generated/numpy.log.html
http://docs.scipy.org/doc/numpy/reference/generated/numpy.log10.html
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Show current key setting?
I'm having a problem with VIM whereby none of my commands work.
3 Answers
3
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Setting HTTP headers
I'm trying to set a header in my Go web server. I'm using gorilla/mux and net/http packages.
8 Answers
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Creating my own Iterators
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You should use Boost.Iterators. It contains a number of templates and concepts to implement new iterators and adapters for existing iterators. I have written an article about this very topic; it's in the December 2008 ACCU magazine. It discusses an (IMO) elegant solution for exactly your pr...
Is there a Python Library that contains a list of all the ascii characters?
...but from 0 to 127 codes, that is not only letters.
– Andrey
May 5 '11 at 0:48
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string.ascii_lett...