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How dangerous is it to compare floating point values?
...t will make sense to compare with an "epsilon", but that epsilon should be based on the magnitude of the numbers you are comparing, not an absolute constant. (In cases where an absolute constant epsilon would work, that's strongly indicative that fixed point, not floating point, is the right tool fo...
Build an ASCII chart of the most commonly used words in a given text [closed]
...
Ruby 1.9, 185 chars
(heavily based on the other Ruby solutions)
w=($<.read.downcase.scan(/[a-z]+/)-%w{the and of to a i it in or is}).group_by{|x|x}.map{|x,y|[-y.size,x]}.sort[0,22]
k,l=w[0]
puts [?\s+?_*m=76-l.size,w.map{|f,x|?|+?_*(f*m/k)+"| "+x}]
...
Add new item count to icon on button - Android
...blic override bool OnCreateOptionsMenu(IMenu menu)
{
// return base.OnCreateOptionsMenu(menu);
MenuInflater.Inflate(Resource.Menu.actionmenu, menu);
// var dd = menu.FindItem(Resource.Id.icon_group);
IMenuItem item = menu.FindItem(Resource.Id.ic_group);
La...
What are good examples of genetic algorithms/genetic programming solutions? [closed]
...st job as a professional programmer (1995) was writing a genetic-algorithm based automated trading system for S&P500 futures. The application was written in Visual Basic 3 [!] and I have no idea how I did anything back then, since VB3 didn't even have classes.
The application started with a po...
Difference between thread's context class loader and normal classloader
...ssA". 90% of the time they mean the same. But if you are not using a URL based classloader, then only the second case is true.
– David Roussel
Aug 26 '14 at 11:19
...
How can I pair socks from a pile efficiently?
...heck whether two socks come in pair. Pick one of the O(n log n) comparison-based sorting algorithms.
However in real life when the number of socks is relatively small (constant), these theoretically optimal algorithms wouldn't work well. It might take even more time than sequential search, which th...
How to REALLY show logs of renamed files with git?
...ing not only for the user,
but also for git commands that make decisions based on rename
information, e.g. 'git log --follow other-dir/A/file' follows
'dir/B/file' past the rename.
This behavior is a side effect of commit v2.0.0-rc4~8^2~14
(diffcore-rename.c: simplify finding exact rena...
Integrating the ZXing library directly into my Android application
... work it's magic [having issues?]
Enter Eclipse -> new Android Project, based on the android folder in the directory you just extracted
Right-click project folder -> Properties -> Java Build Path -> Library -> Add External JARs...
Navigate to the newly extracted folder and open the co...
How Python web frameworks, WSGI and CGI fit together
...tdout and stderr to signify end of response.
WSGI is an interface that is based on the CGI design pattern. It is not necessarily CGI -- it does not have to fork a subprocess for each request. It can be CGI, but it doesn't have to be.
WSGI adds to the CGI design pattern in several important ways....
What is the fastest integer division supporting division by zero no matter what the result is?
...pular question and answer, I'll elaborate a bit more. The above example is based on programming idiom that a compiler recognizes. In the above case a boolean expression is used in integral arithmetic and the use of condition flags are invented in hardware for this purpose. In general condition flags...