

v. 
 abbreviation
 versus

vanish 
 verb (vanish, es)
 To become invisible or move out of view unnoticed.
 (Mathematics) To become equal to zero.
 The function f(x)=x^2 vanishes at x=0.

variable 
 noun
 something that is
 Adjective, variable
 something whose value may be dictated or discovered
 There are several variables to consider here.
 (mathematics) a quantity that may assume any one of a set of values
 (mathematics) a symbol representing a variable
 (complang) a named memory location in which a program can store intermediate results and from which it can read it them
 (astronomy) a variable star
adjective
 able to vary
 likely to vary
 marked by diversity or difference
 (math) having no fixed quantitative value
 (biology) tending to deviate from a normal or recognized type

vector function 
 noun  (mathematics) Any function whose range is ndimensional

vector product 
 noun
 (vector) a vector with the size given by the product of two vectors computed as the product of the magnitudes of the vectors and the sine of the angle between their directions, and directed perpendicular to the given two vectors, with positive orientation.

vector space 
 noun
 (maths) A type of set of vectors that satisfies a specific group of constraints.
 A vector space is a set of vectors which can be linear combination, linearly combined.
vector space over the field F
 (linear algebra) A set V, whose elements are called "vectors", together with a binary operation + forming a module (V,+), and a set F^{ of bilinear unary functions f:V→V, each of which corresponds to a "scalar" element f of a field F, such that the composition of elements of F corresponds isomorphically to multiplication of elements of F, and such that for any vector v, 1(v) = v.
}
 Any field <math>\mathbb{F}</math> is a onedimensional vector space over itself.
 If <math>\mathbb{V}</math> is a vector space over <math>\mathbb{F}</math> and S is any set, then <math>\mathbb{V}^S={f, f:S\rightarrow \mathbb{V} \}</math> is a vector space over <math>\mathbb{F}</math>, and <math> \mbox{dim} ( \mathbb{V}^S ) = \mbox{card}(S) \, \mbox{dim} (\mathbb{V})</math>.
 If <math>\mathbb{V}</math> is a vector space over <math>\mathbb{F}</math> then any closed subset of <math>\mathbb{V}</math> is also a vector space over <math>\mathbb{F}</math>.
 The above three rules suffice to construct all vector spaces.

versed sine 
 noun (plural versed sines)
 (trigonometry) The trigonometric function 1 − cos(x). Abbreviations: versin, vers

versine 
 noun  (trigonometry) The versed sine.

vinculum 
 noun
(plural vinculums or vincula)
 (arithmetic) A horizontal line used to separate the numerator from the denominator in a fraction, or over the top of part of a calculation and serving the same purpose as parentheses (ie, indicating that this part of the calculation is to be done before other parts).

void 
 noun
 An empty space; a vacuum.
 Nobody had crossed the since one man died trying three hundred years ago; it's high time we had another go.
verb (transitive)
 To make invalid or worthless.
 He voided the check and returned it.
 (medicine) To empty.
 one"s bowels
adjective
 Having lost all legal validity
 null and void

vulgar fraction 
 noun (plural vulgar fractions)
 (arithmetic) A fraction in the form of one integer divided by another, nonzero, integer.
