Core Animation is Apple's framework for performing hardware-accelerated animation of display elements on the Mac and iOS devices. Useful references include Core Animation Programming Guide Animation Types and Timing Programming Guide Core Animation Cookbook

The Bot API is an HTTP-based interface created for developers keen on building bots for Telegram which is an instant-messaging app with documented API. Use this tag if you're writing a telegram bot and have a specific question regarding the Bot API.

Orientation is the way up, down, left or right something is facing or being held in. Typically, you distinguish between Portrait (or Vertical) and Landscape (or Horizontal) orientations.

To convert some encoded data (e.g. bytes, electrical signals) to some representation ready for further processing (e.g. string, object, picture)

Questions related to the iOS UIImagePickerController class (and the associated UIImagePickerControllerDelegate protocol), which provides system-supplied user interfaces for taking pictures and movies on iOS devices, and for choosing saved images and movies.

Questions about the 2.0.x branch of the CakePHP MVC framework. If your question applies to CakePHP in general, use the tag [cakephp].

A member of Apple's Objective-C framework Cocoa. NSDictionary objects manage associations of keys and values.

anything related to RxJava2 – The new implementation of the RxJava Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.

A Listener Object that reacts to 'click' events triggered from an input device, such as a Mouse

Linear Algebra is a core body of mathematics studying vector spaces and linear mappings between these spaces. Key topics include: matrices, vectors, simultaneous systems of linear equations, diagonal form, eigenvalues, eigenvectors, projections, points, lines, planes, hyperplanes, rotations and reflections.

Questions about routing within ASP.NET (including MVC).