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How do Trigonometric functions work?
...ar the evaluation point; the error generally zooms upwards as you get away from it. And if you have a function with any noncontinuous derivative (e.g. square waves, triangle waves, and their integrals), a Taylor series will give you the wrong answer.
The best "easy" solution, when using a polynomia...
Set style for TextView programmatically
...
use the method from the support library, TextViewCompat.setTextAppearance
– Rubin Yoo
Dec 2 '16 at 20:29
...
How to iterate through all git branches using bash script
...t log --oneline "$branch" ^origin/master
done
*
Ref names should be safe from the shell’s word splitting (see git-check-ref-format(1)). Personally I would stick with the former version (generated shell code); I am more confident that nothing inappropriate can happen with it.
Since you specifie...
What are the primary differences between Haskell and F#? [closed]
...teed that if you call f(x), nothing else happens besides returning a value from the function, such as console output, database output, changes to global or static variables.. and although Haskell can have non pure functions (through monads), it must be 'explicitly' implied through declaration.
Pure...
How do I increase the number of displayed lines of a Java stack trace dump?
...u don't need to; that information is present elsewhere in the stack trace. From the docs of printStackTrace():
Note the presence of lines containing the characters "...". These lines indicate that the remainder of the stack trace for this exception matches the indicated number of frames from the bo...
Adding :default => true to boolean in existing Rails column
...m not sure when this was written, but currently to add or remove a default from a column in a migration, you can use the following:
change_column_null :products, :name, false
Rails 5:
change_column_default :products, :approved, from: true, to: false
http://edgeguides.rubyonrails.org/active_rec...
Is it possible to make relative link to image in a markdown file in a gist?
...
According to http://blog.rodneyrehm.de/archives/35-Including-Data-From-Github.html, the problem in using
https://gist.github.com/user/605560c2961cb3025038/raw/b75d2...6e8/img.png
is that the b75d2...6e8 part varies per file (a quick experimentation confirms it is the git blob id). How...
Make xargs execute the command once for each line of input
...your input:
xargs -L 1
xargs --max-lines=1 # synonym for the -L option
from the man page:
-L max-lines
Use at most max-lines nonblank input lines per command line.
Trailing blanks cause an input line to be logically continued on
the next input line. Implies -x.
...
Get class name of object as string in Swift
...
String from an instance:
String(describing: YourType.self)
String from a type:
String(describing: self)
Example:
struct Foo {
// Instance Level
var typeName: String {
return String(describing: Foo.self)
}...
What is the volatile keyword useful for?
...le, which will instruct JVM threads to read the value of volatile variable from main memory and don’t cache it locally.
If a variable is not shared between multiple threads then there is no need to use the volatile keyword.
source
Example usage of volatile:
public class Singleton {
private...