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number
A measure of how many things there are, or how much there is, of a certain kind.
Number
s are subclassed into
RealNumber
,
ComplexNumber
, and
ImaginaryNumber
.
Relationships
Parents
quantity
Any specification of how many or how much of something there is. Accordingly, there are two subclasses of
Quantity
:
Number
(how many) and
PhysicalQuantity
(how much).
Children
complex number
A
Number
that has the form: x + yi, where x and y are
RealNumber
s and i is the square root of 1.
imaginary number
Any
Number
that is the result of multiplying a
RealNumber
by the square root of 1.
multipole variable
a variable that describes energetical interactions between multipoles.
real number
Any
Number
that can be expressed as a (possibly infinite) decimal, i.e. any
Number
that has a position on the number line.
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