ARC (file format)

ARC is a lossless data compression and archival format by System Enhancement Associates (SEA). It was very popular during the early days of networked dial-up BBS. The file format and the program were both called ARC. The ARC program made obsolete the previous use of a combination of the SQ program to compress files and the LU program to create .LBR archives, by combining both compression and archiving functions into a single program. Unlike ZIP, ARC is incapable of compressing entire directory trees. The format was subject to controversy in the 1980s—an important event in debates over what would later be known as open formats.

The .arc file extension is often used for several file archive-like file types. For example, the Internet Archive uses its own ARC format to store multiple web resources into a single file. The FreeArc archiver also uses .arc extension, but uses a completely different file format.

Nintendo uses an unrelated 'ARC' format for resources, such as MIDI, voice samples, or text, in GameCube and Wii games. Several unofficial extractors exist for this type of ARC file.

Arc (projective geometry)

A (simple) arc in finite projective geometry is a set of points which satisfies, in an intuitive way, a feature of curved figures in continuous geometries. Loosely speaking, they are sets of points that are far from "line-like" in a plane or far from "plane-like" in a three-dimensional space. In this finite setting it is typical to include the number of points in the set in the name, so these simple arcs are called k-arcs. An important generalization of the k-arc concept, also referred to as arcs in the literature, are the (k, d)-arcs.

k-arcs in a projective plane

In a finite projective plane π (not necessarily Desarguesian) a set A of k (k ≥ 3) points such that no three points of A are collinear (on a line) is called a k - arc. If the plane π has order q then k ≤ q + 2, however the maximum value of k can only be achieved if q is even. In a plane of order q, a (q + 1)-arc is called an oval and, if q is even, a (q + 2)-arc is called a hyperoval.

Every conic in the Desarguesian projective plane PG(2,q), i.e., the set of zeros of an irreducible homogeneous quadratic equation, is an oval. A celebrated result of Beniamino Segre states that when q is odd, every (q + 1)-arc in PG(2,q) is a conic. This is one of the pioneering results in finite geometry.

Directed graph

In mathematics, and more specifically in graph theory, a directed graph (or digraph) is a graph, or set of vertices connected by edges, where the edges have a direction associated with them. In formal terms, a directed graph is an ordered pair G = (V, A) (sometimes G = (V, E)) where

It differs from an ordinary or undirected graph, in that the latter is defined in terms of unordered pairs of vertices, which are usually called edges, arcs, or lines.

A directed graph is called a simple digraph if it has no multiple arrows (two or more edges that connect the same two vertices in the same direction) and no loops (edges that connect vertices to themselves). A directed graph is called a directed multigraph or multidigraph if it may have multiple arrows (and sometimes loops). In the latter case the arrow set forms a multiset, rather than a set, of ordered pairs of vertices.

Bug!

Bug! is a 3D rendered platform/adventure video game developed by Realtime Associates for the Sega Saturn. Released in 1995 as a launch game for the Saturn in North America, it was one of the earliest 3D platform games. It was later localized to Europe and Japan, then ported to Windows 3.x and Windows 95 on August 31, 1996 by Beam Software, on one CD that contains both versions of the game.

A sequel was released in 1996, Bug Too!.

Plot

The background plot centers around the title character, Bug!, a famous Hollywood star hoping to make his "biggest break" ever. Players take control shortly after Bug! has signed up a deal for the lead role in an action film in which his girlfriend is kidnapped by Queen Cadavra and must set out to rescue her. The gameplay takes place "on the set" of each scene and cutscenes between levels indicate Bug! moving over from one set to the next.

Gameplay

Bug! was played like a traditional side-scrolling adventure game. In the same fashion as Sonic the Hedgehog , Bug! must jump and stung on the heads of his enemies to defeat them while making his way through large levels and collecting power-ups. What sets Bug! apart is the game's 3D levels, which take the side-view and tweak it. Bug! can walk sidewise up vertical surfaces and even upside down. Each set of levels (ranging from a bright, green grassy area to a deep red, desert level) has a deeply individual look and feel.

Software bug

A software bug is an error, flaw, failure or fault in a computer program or system that causes it to produce an incorrect or unexpected result, or to behave in unintended ways. Most bugs arise from mistakes and errors made by people in either a program's source code or its design, or in frameworks and operating systems used by such programs, and a few are caused by compilers producing incorrect code. A program that contains a large number of bugs, and/or bugs that seriously interfere with its functionality, is said to be buggy or defective. Reports detailing bugs in a program are commonly known as bug reports, defect reports, fault reports, problem reports, trouble reports, change requests and so forth.

Bugs trigger errors that may in turn have a wide variety of ripple effects with varying levels of inconvenience to the user of the program. Some bugs have only a subtle effect on the program's functionality, and may thus lie undetected for a long time. More serious bugs may cause the program to crash or freeze. Others qualify as security bugs and might, for example, enable a malicious user to bypass access controls in order to obtain unauthorized privileges.

Bug (2002 film)

Bug is a 2002 American comedy film, directed by Phil Hay and Matt Manfredi. It was released on February 28, 2002.

Plot

An eclectic group of individuals in Los Angeles, are propelled by a series of cause-and-effect chain reactions to a common destiny.

External links