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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...
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...
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...
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...
Is it possible to make relative link to image in a markdown file in a gist?
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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...
Get class name of object as string in Swift
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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)
}...
How to change the decimal separator of DecimalFormat from comma to dot/point?
...DecimalFormat(formatString, otherSymbols);
currentLocale can be obtained from Locale.getDefault() i.e.:
Locale currentLocale = Locale.getDefault();
share
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Is there a way to get the git root directory in one command?
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How can I use this from within a git hook? Specifically, I'm doing a post-merge hook and I need to get the actual root directory of the local git repo.
– Derek
Jul 31 '13 at 16:52
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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.
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converting Java bitmap to byte array
...he call to copyPixelsToBuffer the bytes are all 0... The bitmap returned from the camera is immutable... but that shouldn't matter since it's doing a copy.
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