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Circle-Rectangle collision detection (intersection)
...s algorithm to accommodate that case, one should simply apply a coordinate transformation where the origin is at the rectangle center and the rectangle isn't oblique anymore. You need to apply the transformation to the circle center only.
– enobayram
Apr 5 '13 ...
Get unique values from a list in python [duplicate]
...t:
>>> a = ['a', 'b', 'c', 'd', 'b']
To get unique items, just transform it into a set (which you can transform back again into a list if required):
>>> b = set(a)
>>> print(b)
{'b', 'c', 'd', 'a'}
...
What's the difference between NOT EXISTS vs. NOT IN vs. LEFT JOIN WHERE IS NULL?
...
If the database is good at optimising the query, the two first will be transformed to something close to the third.
For simple situations like the ones in you question, there should be little or no difference, as they all will be executed as joins. In more complex queries, the database might no...
Fast way of counting non-zero bits in positive integer
...et in the bucket (0 if no bits are set and 1 if one bit is set). The first transformation results in an analogous state, but with 32 buckets each 2-bit long. This is achieved by appropriately shifting the buckets and adding their values (one addition takes care of all buckets since no carry can occu...
What does value & 0xff do in Java?
...2 in 32-bit, two's complement), not 00 00 00 fe (decimal value 254). This transformation (from a byte value fe to an int value ff ff ff fe) is known as sign extension and is part of the Java language specification. The purpose of value & 0xff is to undo the sign extension (i.e., to simulate zero...
How to optimize for-comprehensions and loops in Scala?
...
Update 5/28:
As a short term solution, the ScalaCL plugin (alpha) will transform simple Scala loops into the equivalent of while loops.
As a potential longer term solution, teams from the EPFL and Stanford are collaborating on a project enabling run-time compilation of "virtual" Scala for very h...
Getting the closest string match
...strings (the number of insertions,
'deletions, and substitutions needed to transform the first string into the second)
Public Function LevenshteinDistance(ByRef S1 As String, ByVal S2 As String) As Long
Dim L1 As Long, L2 As Long, D() As Long 'Length of input strings and distance matrix
Dim ...
reStructuredText tool support
...ite; a fork is found on GitHub.
Scala - Laika
Laika is a new library for transforming markup languages to other output formats. Currently it supports input from Markdown and reStructuredText and produce HTML output. The library is written in Scala but should be also usable from Java.
Perl
Text:...
Proper Linq where clauses
...e the reality could be the LINQ provider goes and does useful optimization transformations to the expression. But given the second one requires only one loop and benefits from boolean short circuiting, it is hard to see why it shouldn't be labeled as "far faster" in general terms. If the OP only has...
Logback to log different messages to two files
...ore.rolling.RollingFileAppender">
<file>${catalina.base}/logs/transformer.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<fileNamePattern>${catalina.base}/logs/transformer-%d{yyyy-MM-dd_HH}.log</fileNamePattern>
...