ulp

The sound of a person gulping in fear.

Interjection

  1. The sound of a person gulping in fear.
    • 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. - 2009, Charlie Connelly, And Did Those Feet:...
    • 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...
    • Little—ulp—little red horns curving out of his brow. My mouth was totally dry. - 2012, Jennifer Stevenson, It’s Raining Angels and Demons (Slacker Demons; book 2), Lancaster, Oh.: Calliope, →ISBN:

    Synonyms: gulp

Origin

Imitative, or possibly a variant of gulp.

Noun

  1. The value that the least significant digit of a floating-point number represents, used as a measure of accuracy in numeric calculations.
    • The basic concept of two vectors "agreeing to k ulps" (units in the last place) of each entry or of the largest entry allows us to express relationships among computed values and solutions at perturbed data. - 1980,...
    • 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). - 1981, Donald E[rvin]...
    • The difference between two consecutive machine numbers is called an ulp (unit in the last place, i.e., one digit in the least significant place). The size of an ulp varies depending on where you are in the set of...

Origin

Abbreviation of unit in the last place or unit of least precision, coined in 1960 by Canadian mathematician and computer scientist William Kahan (born 1933).

Forms

ulps