# ulp

*See also:*

**ULP**

## Contents

## EnglishEdit

### PronunciationEdit

### Etymology 1Edit

Imitative, or from *gulp*?

#### InterjectionEdit

**ulp**

- The sound of a person gulping in fear.
**2009**February 10, Joel Rubinoff, “Train wreck keeps rollin' along”, in Toronto Star^{[1]}:- And where would the Grammys be without Motown maverick Stevie Wonder, continuing his slide into musical irrelevance with a mind-boggling collaboration with,
**ulp**, teen idols the Jonas Brothers, who massacred their own "Burnin' Up" and Stevie's "Superstition" with boyish aplomb.

**2009**, Charlie Connelly, And Did Those Feet:- I sent her a text asking as nonchalantly as possible whether cows ever go for you. […] The answer I got was, 'Occasionally they do, and they can be bloody scary.'
**Ulp**.

**2015**, Jennifer Stevenson, It's Raining Angels and Demons:- Little—
**ulp**—little red horns curving out of his brow. My mouth was totally dry.

### Etymology 2Edit

Abbreviation of *unit in the last place* or *unit of least precision*.

#### NounEdit

**ulp** (*plural* **ulps**)

- (mathematics, computer science) The value that the least significant digit of a floating-point number represents, used as a measure of accuracy in numeric calculations.
**1997**, Donald E. Knuth, Art of Computer Programming, Volume 2: Seminumerical Algorithms:- Floating point operations are correct to within half an
**ulp**, and the calculation of*uvw*by two floating point multiplications will be correct within about one**ulp**(ignoring second-order terms).

**2018**, Jean-Michel Muller, Handbook of Floating-Point Arithmetic, page 34:- It is important to be able to establish links between errors expressed in
**ulps**, and relative errors.

### AnagramsEdit

## ItalianEdit

### NounEdit

**ulp** f (*invariable*)

- (mathematics, computer science) ulp (unit in the last place (unità in ultima posizione) or unit of least precision (unità di minore precisione))