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请输入英文单字,中文词皆可:

0    
0
adj 1: indicating the absence of any or all units under
consideration; "a zero score" [synonym: {zero}, {0}]
n 1: a mathematical element that when added to another number
yields the same number [synonym: {zero}, {0}, {nought},
{cipher}, {cypher}]

A dictionary containing a natural history requires too
many hands, as well as too much time, ever to be hoped
for. --Locke.
0 \0\ adj.
1. indicating the absence of any or all units under
consideration; -- representing the number zero as an
Arabic numeral.

Syn: zero
[WordNet 1.5 PJC]

{zero}

0 Numeric zero, as opposed to the letterO’ (the 15th
letter of the English alphabet). In their unmodified forms they look a lot
alike, and various kluges invented to make them visually distinct have
compounded the confusion. If your zero is center-dotted and letter-O is
not, or if letter-O looks almost rectangular but zero looks more like an
American football stood on end (or the reverse), you're probably looking at
a modern character display (though the dotted zero seems to have originated
as an option on IBM 3270 controllers). If your zero is slashed but
letter-O is not, you're probably looking at an old-style ASCII graphic set
descended from the default typewheel on the venerable ASR-33 Teletype
(Scandinavians, for whom Ø is a letter, curse this arrangement).
(Interestingly, the slashed zero long predates computers; Florian Cajori's
monumental A History of Mathematical Notations notes
that it was used in the twelfth and thirteenth centuries.) If letter-O has
a slash across it and the zero does not, your display is tuned for a very
old convention used at IBM and a few other early mainframe makers
(Scandinavians curse this arrangement even more,
because it means two of their letters collide). Some Burroughs/Unisys
equipment displays a zero with a reversed slash. Old
CDC computers rendered letter O as an unbroken oval and 0 as an oval broken
at upper right and lower left. And yet another convention common on early
line printers left zero unornamented but added a tail or hook to the
letter-O so that it resembled an inverted Q or cursive capital letter-O
(this was endorsed by a draft ANSI standard for how to draw ASCII
characters, but the final standard changed the distinguisher to a tick-mark
in the upper-left corner). Are we sufficiently confused yet?


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  • 0 (number) - New World Encyclopedia
    0 (zero) is both a number and a numerical digit used to represent that number in numerals As a number, zero means nothing —an absence of other values It plays a central role in mathematics as the identity element of the integers, real numbers, and many other algebraic structures As a digit, zero is used as a placeholder in place value systems Historically, it was the last digit to come
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  • What is Zero 0? | Mathematics Grade 1 | Periwinkle - YouTube
    What is 'Zero' 0? | Mathematics Grade 1 | PeriwinkleThis short video on zero will tell you why its important Watch our other videos:English Stories for Kids:
  • What is 0. 0. 0. 0 ip address? - howtouselinux
    What is 0 0 0 0 ip address? 0 0 0 0 is a special IP address known as the “default route” or “unspecified address” It is used to indicate that traffic should be sent to all interfaces on a machine, regardless of their individual IP addresses This can be useful in certain networking scenarios, such as when you want to send traffic to multiple devices on a single network For example
  • 0 - Simple English Wikipedia, the free encyclopedia
    Zero (0, ⁰) is a unique number [1] If there are zero things, then there is nothing at all For example, if a person has zero hats, that means they do not have any hats The Roman numeral for zero is Ↄ or ’
  • Zero Definition (Illustrated Mathematics Dictionary)
    Illustrated definition of Zero: Zero represents no quantity It has the symbol 0 It is the integer between 1 and 1 and
  • What does the 0. 0. 0. 0 IP address mean and why is it used?
    The IP address number 0 0 0 0 is a nonroutable IPv4 address with several uses, primarily as a default or placeholder address Even though 0 0 0 0 has several uses on computer networks, it is not a general-purpose device address
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