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Select the values of one property on all objects of an array in PowerShell
...ter is syntactically simpler).
The script-block variant, allows arbitrary transformations; it is a faster - all-in-memory-at-once - alternative to the pipeline-based ForEach-Object cmdlet (%).
Comparing the performance of the various approaches
Here are sample timings for the various approaches,...
What's “P=NP?”, and why is it such a famous question? [closed]
... non-deterministic Turing-machine to a deterministic one, we can, however, transform non-deterministic finite automatons (like the regex parser) into deterministic ones (well, you can, but the run-time of the machine will take long). That is, we have to try every possible path (usually smart CS prof...
Why is processing a sorted array faster than processing an unsorted array?
...something when a condition is satisfied. This type of branch can be easily transformed into a conditional move statement, which would be compiled into a conditional move instruction: cmovl, in an x86 system. The branch and thus the potential branch prediction penalty is removed.
In C, thus C++, the...
How do you detect where two line segments intersect? [closed]
...l dot to zero with E. That vector I called P above, and I did the obvious transformation of E.
You now have:
A*P = C*P + F*P*h
(A-C)*P = (F*P)*h
( (A-C)*P ) / (F*P) = h
share
...
Angular JS: What is the need of the directive’s link function when we already had directive’s contro
...ll the registered
directives in the template. For each directive, it then transforms the
DOM based on the directive’s rules (template, replace, transclude, and
so on), and calls the compile function if it exists. The result is a
compiled template function,
Link phase:
To make the view dyn...
What is the difference between LR, SLR, and LALR parsers?
...t for me is an enormously useful fact. I build program analyzers and code transformers and parsers are necessary but "uninteresting"; the interesting work is what you do with the parsed result and so the focus is on doing the post-parsing work. Using GLR means I can relatively easily build working...
Mixing Angular and ASP.NET MVC/Web api?
...m the server would be serialized into JSON and from there KnockoutJS would transform it into observable data, so I would get two-way data binding. And that was great! But what what do we do that now, since AngularJS has it's own routing system? What happens with MVC routing? Do we use it at all? Wha...
How to merge YAML arrays?
...
Although the output result is a nested list of lists, this can be easily transformed using the flatten method.
See also
Updated alternative approach by @Anthon
See alternative approach
Examples of the flatten method
Javascript flatten ;; Merge/flatten an array of arrays
Ruby flatten ;; htt...
Iterator invalidation rules
...d. —end note ] [26.2.1/(11.6)]
As examples of the above requirements:
transform algorithm: The op and binary_op functions shall not invalidate iterators or subranges, or modify elements in the ranges [28.6.4/1]
accumulate algorithm: In the range [first, last], binary_op shall neither modify el...
Nearest neighbors in high-dimensional data?
...ake sure that you really need all 21 dimensions and possibly find a linear transformation which would allow you to use less than 21 with approximately the same result quality.
Update:
I encountered them in a book called Biomedical Signal Processing by Rangayyan (I hope I remember it correctly). ICA...
