Tutorial by Examples: p

As the picture aspect ratio example indicates, videos are series of pictures that do not necessarily have the same aspect ratio as the final result to be displayed to the user. So how do you get from those stretched pictures to the normally displayed output? You need a stretching factor! This stret...

This is another name for sample aspect ratio and should be avoided, as the natural acronym (PAR) conflicts with picture aspect ratio.

Consider the following list comprehension Python 2.x2.7 i = 0 a = [i for i in range(3)] print(i) # Outputs 2 This occurs only in Python 2 due to the fact that the list comprehension “leaks” the loop control variable into the surrounding scope (source). This behavior can lead to hard-to-find...

To create a Behavior just extend the CoordinatorLayout.Behavior class. Extend the CoordinatorLayout.Behavior Example: public class MyBehavior<V extends View> extends CoordinatorLayout.Behavior<V> { /** * Default constructor. */ public MyBehavior() { ...

The SwipeDismissBehavior works on any View and implements the functionality of swipe to dismiss in our layouts with a CoordinatorLayout. Just use: final SwipeDismissBehavior<MyView> swipe = new SwipeDismissBehavior(); //Sets the swipe direction for this behavior. ...

You can use the CoordinatorLayout.Behavior to create dependencies between views. You can anchor a View to another View by: using the layout_anchor attribute. creating a custom Behavior and implementing the layoutDependsOn method returning true. For example, in order to create a Behavior for m...

Detailed instructions on getting gerrit set up or installed.

When you really need to script ssh connection, piping the password into the ssh command does not work (echo passw0rd | ssh host). It is because the password is not read from standard input, but directly from TTY (teleprinter, teletypewriter, Teletype for historical reasons). But there is sshpass to...

Select the project you want to add the reference to Moq. Open Nuget for this project. Select "Browse" than type "moq" at the search box. Select "Moq" and than click on Install. Following these steps will install the Moq package and will add a reference to it i...

#include <iostream> #include <boost/accumulators/accumulators.hpp> #include <boost/accumulators/statistics/stats.hpp> #include <boost/accumulators/statistics/mean.hpp> #include <boost/accumulators/statistics/variance.hpp> int main() { using namespace boost...

Detailed instructions on getting quickblox set up or installed. Go to https://admin.quickblox.com and click on “Register” at the top or just follow the link: https://admin.quickblox.com/register.

Detailed instructions on getting oracle11g set up or installed.

These types do not inherit from Array<T> to avoid boxing, however, they have the same attributes and methods. Kotlin typeFactory functionJVM typeBooleanArraybooleanArrayOf(true, false)boolean[]ByteArraybyteArrayOf(1, 2, 3)byte[]CharArraycharArrayOf('a', 'b', 'c')char[]DoubleArraydoubleArrayOf...

We can define a function to perform function composition using anonymous function syntax: f ∘ g = x -> f(g(x)) Note that this definition is equivalent to each of the following definitions: ∘(f, g) = x -> f(g(x)) or function ∘(f, g) x -> f(g(x)) end recalling that in Julia,...

One application of closures is to partially apply a function; that is, provide some arguments now and create a function that takes the remaining arguments. Currying is a specific form of partial application. Let's start with the simple function curry(f, x) that will provide the first argument to a ...

Theorem my_first_theorem : 1 + 1 = 2. Proof. reflexivity. Qed. Try it in your browser.

A stream wrapper provides a handler for one or more specific schemes. The example below shows a simple stream wrapper that sends PATCH HTTP requests when the stream is closed. // register the FooWrapper class as a wrapper for foo:// URLs. stream_wrapper_register("foo", FooWrapper::class...

Detailed instructions on getting rcpp set up or installed.

Each array instance contains an internal pointer. By manipulating this pointer, different elements of an array can be retrieved from the same call at different times. Using each Each call to each() returns the key and value of the current array element, and increments the internal array pointer. ...

See also Common Lisp Learning Resources. Online Books Practical Common Lisp, Peter Seibel. Good for experienced programmers. Common Lisp: A Gentle Introduction to Symbolic Computation Good for people new to programming. Common Lisp, the Language On Lisp, Paul Graham The Common Lisp Cookbook ...