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Is floating point math broken?
...arger than the rational number 0.2 but that the closest double to 0.3 is smaller than the rational number 0.3. The sum of 0.1 and 0.2 winds up being larger than the rational number 0.3 and hence disagreeing with the constant in your code.
A fairly comprehensive treatment of floating-point arithmet...
What is the benefit of using $() instead of backticks in shell scripts?
... 201112[0-9][0-9]*.txt | tail -1l) -print)
which will give you a list of all files in the /dir directory tree which have the same name as the earliest dated text file from December 2011 (a).
Another example would be something like getting the name (not the full path) of the parent directory:
pax...
How do I create a list of random numbers without duplicates?
...
With reference to your specific code example, you probably want to read all the lines from the file once and then select random lines from the saved list in memory. For example:
all_lines = f1.readlines()
for i in range(50):
lines = random.sample(all_lines, 40)
This way, you only need to a...
NHibernate ISession Flush: Where and when to use it, and why?
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Briefly:
Always use transactions
Don't use Close(), instead wrap your calls on an ISession inside a using statement or manage the lifecycle of your ISession somewhere else.
From the documentation:
From time to time the ISession will execute the SQL statements needed to synchronize the ADO.NET ...
Reference requirements.txt for the install_requires kwarg in setuptools setup.py file
...nts.txt and setup.py , so I was hoping to pass a file handle to the install_requires kwarg in setuptools.setup .
20 An...
Java: how do I get a class literal from a generic type?
Typically, I've seen people use the class literal like this:
8 Answers
8
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How do emulators work and how are they written? [closed]
...mulation:
Interpretation
Dynamic recompilation
Static recompilation
With all of these paths, you have the same overall goal: execute a piece of code to modify processor state and interact with 'hardware'. Processor state is a conglomeration of the processor registers, interrupt handlers, etc for ...
Custom views with Storyboard
...complex screens (View Controllers) I used to separate the whole thing in smaller pieces (I call them widgets). These widgets consist basically of a MyWidget.h and a MyWidget.m file as well as a MyWidget.xib file, where the root element is a UIView and the MyWidget class is the File Owner of ...
How can I undo git reset --hard HEAD~1?
... I prefer git reflog over git log -g simply because you get all the information on one line with sha1, HEAD info and commit messages all lined up. Much easier to read.
– Snowcrash
Nov 11 '14 at 18:41
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`find -name` pattern that matches multiple patterns
I was trying to get a list of all python and html files in a directory with the command find Documents -name "*.{py,html}" .
...