Folding
# Folding

Fold, folding or foldable may refer to:

## Arts, entertainment, and media

* Fold (album), the debut release by Australian rock band Epicure
* Fold (poker), in the game of poker, to discard one's hand and forfeit interest in the current pot
* Above the fold and below the fold, the positioning of news items on a newspaper's front page according to perceived importance
* Paper folding, or origami, the art of folding paper

## Science, technology, and mathematics

### Biology

* Protein folding, the physical process by which a polypeptide folds into its characteristic and functional three-dimensional structure
   * Folding@home, a powerful distributed-computing project for simulating protein folding
* Fold coverage, quality of a DNA sequence
* Skin fold, an area of skin that folds

### Computing

* Fold (higher-order function), a type of programming operation on data structures
* fold (Unix), a computer program used to wrap lines to fit in a specified width
* Folding (DSP implementation), a transformation technique using in DSP architecture implementation
* Folding (signal processing), an aspect of aliasing
* Folding editor, a text editor that supports text folding or code folding, allowing the user to hide and reveal blocks of text
* case folding is the conversion of letter case in a string
* Constant folding, a compiler optimization technique
* Folding@home, a powerful distributed-computing project for simulating protein folding

### Electronics

* Foldable display
* Flexible display

### Other uses in science and mathematics

* Fold (geology), one or a stack of originally flat and planar surfaces that are bent or curved as a result of plastic deformation
* Fold (higher-order function), in functional programming, fold refers to a family of higher-order functions that analyze a recursive data structure and through use of a given combining opera
* Folding (chemistry), the process by which a molecule assumes its shape or conformation
* Folding (Dynkin diagram), in Lie theory, a way of obtaining one Dynkin diagram from another
* Fold change, a measure of the difference between two quantities
* e-folding, exponential growth or decay
* Polygon folding, or polyhedron folding

## Other uses

* Amicus Therapeutics, NASDAQ stock trading symbol FOLD
* Book folding, in book production
* Foldable smartphone, a smartphone with a folding form factor
* Folding bicycle, a bicycle designed to fold into a compact form
* Folding bridge, a bridge that can be folded, mainly to open for higher boats
* Folding clothes, allows apparel to be stored compactly, prevents unwanted creasing, preserves wanted creases, and presents them in a pleasing manner, for instance when displayed on sale in stores
* Pen (enclosure), or sheep fold, a sheep pen in British English
* -fold, a feature in British toponymy
* Samsung Galaxy Fold, a smartphone
* Scottish Fold, a cat breed
