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Fixed point vs Floating point number
I just can't understand fixed point and floating point numbers due to hard to read definitions about them all over Google. But none that I have read provide a simple enough explanation of what they really are. Can I get a plain definition with example?
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What guarantees are there on the run-time complexity (Big-O) of LINQ methods?
...inct, GroupBy Join, and I believe also the set-aggregation methods (Union, Intersect and Except) use hashing, so they should be close to O(N) instead of O(N²).
Contains checks for an ICollection implementation, so it may be O(1) if the underlying collection is also O(1), such as a HashSet<T>,...
Referencing a string in a string array resource with xml
...'t think you can, but there seems to be a workaround:.
If you take a look into the Android Resource here:
http://developer.android.com/guide/topics/resources/string-resource.html
You see than under the array section (string array, at least), the "RESOURCE REFERENCE" (as you get from an XML) does ...
Objective-C ARC: strong vs retain and weak vs assign
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retain is the same as strong.
apple says if you write retain it will auto converted/work like strong only.
methods like "alloc" include an implicit "retain"
Example:
@property (nonatomic, retain) NSString *name;
@synthesize name;
4.assign
assign is the default and simply performs a variabl...
dplyr summarise: Equivalent of “.drop=FALSE” to keep groups with zero length in output
...)
#> # A tibble: 3 x 2
#> b count_a
#> <fct> <int>
#> 1 1 6
#> 2 2 6
#> 3 3 0
One additional note to go with @Moody_Mudskipper's answer: Using .drop=FALSE can give potentially unexpected results when one or more grouping variab...
How to use enum values in f:selectItem(s)
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JSF has a builtin converter for enum, so this should do:
@ManagedBean
@ApplicationScoped
public class Data {
public Status[] getStatuses() {
return Status.values();
}
}
with
<h:selectOneMenu value="#{bean.question.stat...
The purpose of Model View Projection Matrix
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Because matrices are convenient. Matrices help to convert locations/directions with respect to different spaces (A space can be defined by 3 perpendicular axes and an origin).
Here is an example from a book specified by @legends2k in comments.
The residents of Cartesia ...
What's the standard way to work with dates and times in Scala? Should I use Java types or there are
... immutable by default, have a much richer and nicer API, and
can easily be converted to Java's Date and Calendar classes when necessary.
This project provides a thin layer of convenience around the Joda Time
libraries, making them more idiomatic to use within Scala.
(copied from https://github.com...
What are the pros and cons of performing calculations in sql vs. in your application
...ores or gold depending of what is cheaper, if you don't have technology to convert ore to gold, or it's to expensive (because miners want to kill these other workers), you will ship it to another location, maybe in between goldsmith and miners, especially if you have more then one goldsmith.
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Source code highlighting in LaTeX
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This is a package which converts source code to TeX and LaTeX with syntax highlighting. It is possible to add custom programming language definitions easily.
Highlight supports 100 programming languages and includes 50 colour themes. It features ...