Virtual vs Null - What's the difference?
As nouns the difference between virtual and null
is that virtual
is (computing) in c++, a virtual member function of a class while null
is zero, nil; the cardinal number before einn.
As an adjective virtual
is in effect or essence, if not in fact or reality; imitated, simulated.
* vertual (obsolete)
* vertuall (qualifier)
* virtuall (obsolete)
In effect or essence, if not in fact or reality; imitated, simulated.
- In fact a defeat on the battlefield, Tet was a virtual victory for the North, owing to its effect on public opinion.
- Virtual addressing allows applications to believe that there is much more physical memory than actually exists.
* De Quincey
- A thing has a virtual existence when it has all the conditions necessary to its actual existence.
Having the power of acting or of invisible efficacy without the agency of the material or measurable part; potential.
* Francis Bacon
- to mask by slight differences in the manners a virtual identity in the substance
- Heat and cold have a virtual transition, without communication of substance.
Nearly, almost. (A relatively recent corruption of meaning, attributed to misuse in advertising and media. )
- Every kind that lives, / Fomented by his virtual power, and warmed.
* 2012 , Chelsea 6-0 Wolves [http://www.bbc.co.uk/sport/0/football/19632463]
- The angry peasants were a virtual army as they attacked the castle.
Simulated in a computer or online.
- The Chelsea captain was a virtual spectator as he was treated to his side's biggest win for almost two years as Stamford Bridge serenaded him with chants of "there's only one England captain," some 48 hours after he announced his retirement from international football.
Operating by computer or in cyberspace; not physically present.
- The virtual world of his computer game allowed character interaction.
(computing, object-oriented programming, of a class member) Capable of being overridden with a different implementation in a subclass.
(physics) Pertaining to particles in temporary existence due to the Heisenberg uncertainty principle.
- a virtual''' assistant; a '''virtual personal trainer
* de facto
* de jure
* virtual reality
(computing) In C++, a virtual member function of a class.
A non-existent or empty value or set of values.
Zero]] quantity of [[expression, expressions; nothing.
Something that has no force or meaning.
(computing) the ASCII or Unicode character (), represented by a zero value, that indicates no character and is sometimes used as a string terminator.
(computing) the attribute of an entity that has no valid value.
- (Francis Bacon)
One of the beads in nulled work.
(statistics) null hypothesis
- Since no date of birth was entered for the patient, his age is null .
Having no validity, "null and void"
* 1924 , Marcel Proust, Within a Budding Grove :
absent or non-existent
(mathematics) of the null set
(mathematics) of or comprising a value of precisely zero
(genetics, of a mutation) causing a complete loss of gene function, amorphic.
- In proportion as we descend the social scale our snobbishness fastens on to mere nothings which are perhaps no more null than the distinctions observed by the aristocracy, but, being more obscure, more peculiar to the individual, take us more by surprise.
to nullify; to annul