LCM(a, b) is the smallest positive integer that is divisible by both a and b.

HttpException or HTTPException are exception classes defined by various object oriented libraries that signal a problem during processing of a http request.

Deals with extracting useful information from PDF content (for example, text or images)

In a graph, ancestor is a node that is connected to all lower-level nodes. The connected lower-level nodes are "descendants" of the ancestor node.

Server-side scripting is a web server technology in which a user's request is verified by running a script directly on the web server to generate dynamic web pages. It is usually used to provide interactive web sites that interface to databases or other data stores. Popular Server Side Scripting languages are PHP, ASP, Java (JSP), Perl and Server-side JavaScript.

PHP's array_intersect() function accepts the array with master values to check, an array to compare values against and a variable list of arrays to compare. It returns an array containing all of the values in master array whose values exist in all of the parameters.

The CreateObject function is used to instantiate COM objects.

Load Time is amount of time (usually in seconds) that takes a browser to fully download and render a web page.

Gtk2Hs is a GUI library for Haskell based on Gtk+. Gtk+ is an extensive and mature multi-platform toolkit for creating graphical user interfaces.

An interpretation is an assignment of meaning to the symbols of a formal language.