Tutorial by Examples: comp

In order to use a plain-text editor to create a Console application that is written in C#, you'll need the C# Compiler. The C# Compiler (csc.exe), can be found at the following location: %WINDIR%\Microsoft.NET\Framework64\v4.0.30319\csc.exe N.B. Depending upon which version of the .NET Framework t...

If A is a complex and quadratic matrix there exists a unitary Q such that Q*AQ = T = D + N with D being the diagonal matrix consisting of the eigenvalues and N being strictly upper tridiagonal. A = [3 6 1 23 13 1 0 3 4]; T = schur(A); We also display the runtime of schur dependent on ...

COMPUTE answer = 3*var-1 That is a reference to the variable var-1, and not var - 1. COMPUTE answer = 3 * var - 1 Recommended, opinion.

Q. Why we need compilation? Ans. We need compilation for achieving higher level of efficiency of our Angular applications. Take a look at the following example, // ... compile: function (el, scope) { var dirs = this._getElDirectives(el); var dir; var scopeCreated; dirs.forEach(functi...

To compile a PHP extension in a typical Linux environment, there are a few pre-requisites: Basic Unix skills (being able to operate "make" and a C compiler) An ANSI C compiler The source code for the PHP extension you want to compile Generally there are two ways to compile a PHP ex...

Given you've already installed composer up and running and it's accessible globally, you can simply create new Symfony projects as stated in the official documentation. Now you can create a new Symfony project with composer: composer create-project symfony/framework-standard-edition my_project_nam...

By default Controllers, ViewComponents and TagHelpers aren't registered and resolved via the dependency injection container. This results in the inability to do i.e. property injection when using a 3rd party Inversion of Control (IoC) container like AutoFac. In order to make ASP.NET Core MVC resolv...

dispatch_group_t preapreWaitingGroup = dispatch_group_create(); dispatch_group_enter(preapreWaitingGroup); [self doAsynchronousTaskWithComplete:^(id someResults, NSError *error) { // Notify that this task has been completed. dispatch_group_leave(preapreWaitingGroup); }] dispatch...

Writing a gzipped file To write a gzipped file, use the module IO::Compress::Gzip and create a filehandle by creating a new instance of IO::Compress::Gzip for the desired output file: use strict; use warnings; use open qw( :encoding(UTF-8) :std ); # Make UTF-8 default encoding use IO::Compres...

Go to the Microsoft link for the OpenXML SDK download. Click the red download button. On the next screen click the box next to OpenXMLSDKToolV25.msi and click next to begin the download. Once the download is complete, launch the OpenXMLSDKToolV25.msi and follow the instructions on the screen. Th...

There are two types of Active Patterns that somewhat differ in usage - Complete and Partial. Complete Active Patterns can be used when you are able to enumerate all the outcomes, like "is a number odd or even?" let (|Odd|Even|) number = if number % 2 = 0 then Even else Odd N...

Use conditional compilation to ensure that code only compiles for the intended instruction set (such as x86). Otherwise code could become invalid if the program is compiled for another architecture, such as ARM processors. #![feature(asm)] // Any valid x86 code is valid for x86_64 as well. Be ca...

The for comprehension is a compact way to run a block of code that depends on the successful result of multiple futures. With f1, f2, f3 three Future[String]'s that will contain the strings one, two, three respectively, val fCombined = for { s1 <- f1 s2 <- f2 ...

The RxLifecycle library makes it easier binding observable subscriptions to Android activities and fragment lifecycle. Keep in mind that forgetting to unsubscribe an Observable can cause memory leaks and keeping your activity / fragment alive event after it has been destroyed by the system. Add th...

You can do neat things via the results of Array "comprehensions"... Like assign multiple variables... from the result of a looping for statement... [express,_] = (require x for x in ['express','underscore']) Or a syntactically sweet version of a "mapped" function call, etc.....

using System; [assembly:CLSCompliant(true)] namespace CLSDoc { [CLSCompliant(false)] public class Animal { public int age = 0; } //Warning CS3009 'Dog': base type 'Animal' is not CLS-compliant public class Dog : Animal { } }

;;Find the nth Fibonacci number for any n > 0. ;; Precondition: n > 0, n is an integer. Behavior undefined otherwise. (defun fibonacci (n) (cond ( ;; Base case. ;; The first two Fibonacci numbers (indices 1 and 2) are 1 by defin...

In some scenarios, we might want to narrow down the results being shown by PlaceAutocomplete to a specific country or maybe to show only Regions. This can be achieved by setting an AutocompleteFilter on the intent. For example, if I want to look only for places of type REGION and only belonging to I...

<link rel="import" href="../bower_components/iron-icon/iron-icon.html"> <link rel="import" href="../bower_components/iron-icons/iron-icons.html"> <link rel="import" href="../bower_components/iron-icons/social-icons.html"&gt...

Presumably the simplest way to use compose is with a View only. This allows you to include HTML templates without the need to declare a ViewModel with bindable properties for each of them, making it easier to reuse smaller pieces of HTML. The BindingContext (ViewModel) of the View will be set to th...