In mathematics, the word null (from German: null[citation needed] meaning "zero", which is from Latin: nullus meaning "none") is often associated with...

Look up Null, null, a-null, núll, or Nullus in Wiktionary, the free dictionary. Null may refer to: Nuller, an optical tool using interferometry to block...

In mathematics, the limit of a sequence is the value that the terms of a sequence "tend to", and is often denoted using the lim {\displaystyle \lim }...

The null sign (∅) is a symbol often used in mathematics for denoting the empty set. The same letter in linguistics represents zero, the lack of an element...

In mathematical analysis, a null set is a Lebesgue measurable set of real numbers that has measure zero. This can be characterized as a set that can be...

In mathematics, given a vector space X with an associated quadratic form q, written (X, q), a null vector or isotropic vector is a non-zero element x...

In the mathematical field of graph theory, the term "null graph" may refer either to the order-zero graph, or alternatively, to any edgeless graph (the...

In mathematics such a function is known as the identity function. Examples of this are the "eNULL" and "aNULL" cipher suite in OpenSSL, and the "NULL Encryption...

statistical significance theory to be mathematically sound while continuing to question the default choice of null hypothesis, blaming instead the "social...

In mathematics, a null semigroup (also called a zero semigroup) is a semigroup with an absorbing element, called zero, in which the product of any two...

The null hypothesis (often denoted H0) is the claim in scientific research that the effect being studied does not exist. The null hypothesis can also...

In mathematics, a matrix (pl.: matrices) is a rectangular array or table of numbers, symbols, or expressions, with elements or entries arranged in rows...

In mathematics, the origin of a Euclidean space is a special point, usually denoted by the letter O, used as a fixed point of reference for the geometry...

an alternative to an idealized null hypothesis of no relationship between two data sets. Rejecting or disproving the null hypothesis is done using statistical...

meaning of "negligible" depends on the mathematical context; for instance, it can mean finite, countable, or null. In contrast, "almost no" means "a negligible...

ℵ 0 {\displaystyle \aleph _{0}} (read aleph-nought, aleph-zero, or aleph-null); the next larger cardinality of a well-ordered set is ℵ 1 , {\displaystyle...

In mathematical physics, a null dust solution (sometimes called a null fluid) is a Lorentzian manifold in which the Einstein tensor is null. Such a spacetime...

undetermined. Any computation including a null value delivers a null result. In mathematics, there is no "positive zero" or "negative zero" distinct from...

include, among others: Empty set: the set containing no or null members Trivial group: the mathematical group containing only the identity element Trivial ring:...

In mathematics, the kernel of a linear map, also known as the null space or nullspace, is the part of the domain which is mapped to the zero vector of...

test is valid when the test statistic is chi-squared distributed under the null hypothesis, specifically Pearson's chi-squared test and variants thereof...

definition Undefined citizenship, a post-Soviet form of statelessness in Estonia Null (disambiguation) Void (disambiguation) Invalid (disambiguation) Definition...

In SQL, null or NULL is a special marker used to indicate that a data value does not exist in the database. Introduced by the creator of the relational...

a true null hypothesis. A type II error, or a false negative, is the erroneous failure in bringing about appropriate rejection of a false null hypothesis...

distribution functions of two samples. The null distribution of this statistic is calculated under the null hypothesis that the sample is drawn from the...

it is called a NOP or NOOP (No OPeration). Mathematically, a (computer) function f {\displaystyle f} is null if and only if its execution leaves the program...

In mathematics, a space is a set (sometimes known as a universe) endowed with a structure defining the relationships among the elements of the set. A...

alternative energy conditions in common use: The null energy condition stipulates that for every future-pointing null vector field k → {\displaystyle {\vec {k}}}...

the null distribution is the probability distribution of the test statistic when the null hypothesis is true. For example, in an F-test, the null distribution...

would distinguish the null from the alternative hypothesis, where such an alternative is prescribed, or that would characterize the null hypothesis if there...