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Parameter vs Hello - What's the difference?

parameter | hello |

As nouns the difference between parameter and hello

is that parameter is parameter while hello is "!" or an equivalent greeting.

As an interjection hello is

.

As a verb hello is

to greet with "hello".

parameter

English

Alternative forms

* parametre

Noun

(en noun)
  • (mathematics, physics) A variable kept constant during an experiment, calculation or similar.
  • (programming) An input variable of a procedure definition, that gets an actual value (argument) at execution time (formal parameter) .
  • Roughly, a tuple of arguments could be thought of as a vector, whereas a tuple of parameters''' could be thought of as a covector (i.e., linear functional). When a function is called, a '''parameter tuple becomes "bound" to an argument tuple, allowing the function instance itself to be computed to yield a return value. This would be roughly analogous to applying a covector to a vector (by taking their dot product (or, rather, matrix-product of row vector and column vector)) to obtain a scalar.
  • (programming) An actual value given to such a formal parameter (argument or actual parameter) .
  • A characteristic or feature that distinguishes something from others.
  • (geometry) In the ellipse and hyperbola, a third proportional to any diameter and its conjugate, or in the parabola, to any abscissa and the corresponding ordinate.
  • The parameter of the principal axis of a conic section is called the latus rectum.
  • (crystallography) The ratio of the three crystallographic axes which determines the position of any plane.
  • (crystallography) The fundamental axial ratio for a given species.
  • Usage notes

    * (the value used to instantiate the name) Some authors regard use of parameter'' to mean ''argument'' as imprecise, preferring that ''parameter'' refers only to the name that will be instantiated, and ''argument to refer to the value that will be supplied to it at runtime.

    Synonyms

    * (value passed to a function) argument * (characteristic distinguishing something from others) distinguishing feature * See also

    Derived terms

    * actual parameter * formal parameter

    See also

    * variable

    hello

    English

    Alternative forms

    * hallo * hilloa (obsolete) * hullo (UK)

    Interjection

    (en interjection)
  • * , chapter=7
  • , title= Mr. Pratt's Patients , passage=I made a speaking trumpet of my hands and commenced to whoop “Ahoy!” and “Hello!'” at the top of my lungs.
  • (colloquial)
  • Usage notes

    * The greeting hello is among the most generic and neutral in use. It may be heard in nearly all social situations and in nearly all walks of life, and is unlikely to cause offense.

    Synonyms

    * (greeting) ** g'day, hey, hi, ** hallo, hi, hiya, ey up ** hallo, hey, hi, howdy ** how's it going, hey, hi ** howzit ** (slang) wassup, what's up, yo, sup * See also

    Antonyms

    * (greeting) bye, goodbye

    Derived terms

    *

    See also

    * * (wikipedia "hello")

    Noun

    (en noun)
  • "!" or an equivalent greeting.
  • * {{quote-news, year=2007, date=April 29, author=Stephanie Rosenbloom, title=A Beautiful Day in the Neighborhood, work=New York Times citation
  • , passage=In many new buildings, though, neighbors are venturing beyond tight-lipped hellos at the mailbox.}}

    Synonyms

    * greeting

    Verb

    (en verb)
  • To greet with "hello".
  • * 2013 , Ivan Doig, English Creek (page 139)
  • I had to traipse around somewhat, helloing' people and being ' helloed , before I spotted my mother and my father, sharing shade and a spread blanket with Pete and Marie Reese and Toussaint Rennie near the back of the park.
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