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What is the fastest way to get the value of π?
... is it inside the semi-circle? Record this fact.
Repeat this process many times -- and you will find there is a ratio of the number of points inside the semi-circle versus the total number thrown, call this ratio x.
Since the area of the square is r times r, you can deduce that the area of the sem...
Restful way for deleting a bunch of items
...ages from Amazon S3 or some other CDN and that operation might take a long time to complete.
– rojoca
Mar 11 '10 at 8:04
2
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Best way to determine user's locale within browser
...ww.example.com/de/site), and let the user click links between the two. Sometimes you do want a single URL for both language versions, in which case you have to store the setting in cookies, but this may confuse user agents with no support for cookies and search engines.
...
What is the difference between Serialization and Marshaling?
... Is there a word that means serialize and deserialize at the same time? Need a name for an interface with those methods.
– raffian
Jul 20 '14 at 3:53
1
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Inserting multiple rows in a single SQL query? [duplicate]
...n the question and in this answer. The first executes triggers X amount of times with 1 record in the inserted table. The second executes triggers 1 time with x amount of records in the inserted table. Making the second method the best choice for performance assuming you made your triggers work corr...
Convert pandas dataframe to NumPy array
...
df.to_numpy() is better than df.values, here's why.
It's time to deprecate your usage of values and as_matrix().
pandas v0.24.0 introduced two new methods for obtaining NumPy arrays from pandas objects:
to_numpy(), which is defined on Index, Series, and DataFrame objects, and
arra...
Status bar and navigation bar appear over my view's bounds in iOS 7
...ollers
In iOS 7, view controllers use full-screen layout. At the same time,
iOS 7 gives you more granular control over the way a view controller
lays out its views. In particular, the concept of full-screen layout
has been refined to let a view controller specify the layout of each
edge...
HashSet vs LinkedHashSet
...
I suggest you to use LinkedHashSet most of the time, because it has better performance overall):
Predictable iteration order LinkedHashSet (Oracle)
LinkedHashSet is more expensive for insertions than HashSet;
In general slightly better performance than HashMap, because ...
What are “sugar”, “desugar” terms in context of Java 8?
...anslating "sugar" constructs into other constructs when the compiler or runtime lacks native support for the sugared versions.
These concepts come up frequently for Java in the context of Android. Android doesn't include any a JDK, but instead is a re-implementation of the Java runtime. Therefore ...
Create empty file using python [duplicate]
... is not good either.
In case you want touch's behaviour (i.e. update the mtime in case the file exists):
import os
def touch(path):
with open(path, 'a'):
os.utime(path, None)
You could extend this to also create any directories in the path that do not exist:
basedir = os.path.dirnam...