Truncation In mathematics and computer science, truncation is limiting the number of digits right of the decimal point. Truncation and floor function Truncation of positive real numbers can be done using the floor function. Given a number x \in \mathbb ...

is the term used for limiting the number of digits right of the decimal point by discarding the least significant ones. Truncation may also refer to:

Mathematics

Truncation (statistics) In statistics, truncation results in values that are limited above or below, resulting in a truncated sample. A random variable y is said to be truncated from below if, for some threshold value c, the exact value of y is known for all cases y > c, ...

refers to measurements which have been cut off at some value * Truncation (numerical analysis) refers to truncating an infinite sum by a finite one *

Truncation (geometry) In geometry, a truncation is an operation in any dimension that cuts polytope vertices, creating a new Facet (geometry), facet in place of each vertex. The term originates from Kepler's names for the Archimedean solids. Uniform truncation In ge ...

is the removal of one or more parts, as for example in truncated cube *

Propositional truncation The vertical bar, , is a glyph with various uses in mathematics, computing, and typography. It has many names, often related to particular meanings: Sheffer stroke (in logic), pipe, bar, or (literally the word "or"), vbar, and others. Usage ...

, a type former which truncates a type down to a mere proposition

Computer science

Data truncation In databases and computer networking data truncation occurs when data or a data stream (such as a file) is stored in a location too short to hold its entire length. Data truncation may occur automatically, such as when a long string is written to ...

, an event that occurs when a file or other data is stored in a location too small to accommodate its entire length *

Truncate (SQL) In SQL, the TRUNCATE TABLE statement is a Data Manipulation Language (DML) operation that deletes all rows of a table without causing a triggered action. The result of this operation quickly removes all data from a table, typically bypassing a num ...

, a command in the SQL data manipulation language to quickly remove all data from a table

Biology

* Truncate, a

leaf shape The following is a list of terms which are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (a single leaf blade or lamina) or compound (with several leaflets). The edge of the leaf may be regular o ...

* Truncated protein, a protein shortened by a

mutation In biology, a mutation is an alteration in the nucleic acid sequence of the genome of an organism, virus, or extrachromosomal DNA. Viral genomes contain either DNA or RNA. Mutations result from errors during DNA or viral replication, mi ...

which specifically induces premature termination of messenger RNA translation

Other uses

Cheque truncation Cheque truncation (check truncation in American English) is a cheque clearance system that involves the digitization of a physical paper cheque into a substitute electronic form for transmission to the paying bank. The process of cheque clearan ...

, the conversion of physical cheques into electronic form for transmission to the paying bank *

Clipping (morphology) In linguistics, clipping, also called truncation or shortening, is word formation by removing some Segment (linguistics), segments of an existing word to create a synonym. Clipping differs from abbreviation, which is based on a shortening of the ...

, the word formation process which consists in the reduction of a word to one of its parts *

Truncation (archaeology) In archaeology and archaeological stratification, a cut or truncation is a context that represents a moment in time when other archaeological deposits were removed for the creation of some feature, such as a ditch or pit. In layman's terms, a cu ...

, also 'cut', the removal of archaeological deposits from an archaeological record {{disambiguation