- An
imaginary number is the
product of a real
number and the
imaginary unit i,
which is
defined by its
property i2 = −1. The
square of an
imaginary number...
- The
imaginary unit or unit
imaginary number (i) is a
mathematical constant that is a
solution to the
quadratic equation x2 + 1 = 0.
Although there is no...
-
complex number is an
expression of the form a + bi,
where a and b are real numbers, and i is an
abstract symbol, the so-called
imaginary unit,
whose meaning...
-
expression") is a noun
phrase that
refers to a
specific real or
imaginary entity. In
contrast with
anaphors and pronouns/pronominals, R-
expressions obey...
- {Log} z} is the
logarithm whose imaginary part lies in the
interval ( − π , π ] {\displaystyle (-\pi ,\pi ]} . The
expression Log 0 {\displaystyle \operatorname...
- uses the
expression "social reality"
rather than "social
imaginary".: 4 In 1975,
Cornelius Castoriadis used the term in his book The
Imaginary Institution...
- {\displaystyle \operatorname {erfc} z=1-\operatorname {erf} z,} and the
imaginary error function e r f i : C → C {\displaystyle \mathrm {erfi} :\mathbb...
- has two
imaginary square roots, + i x {\displaystyle +i{\sqrt {x}}} and − i x {\displaystyle -i{\sqrt {x}}} ,
where i is the
imaginary unit. In...
- e^{ix}=\cos x+i\sin x,}
where e is the base of the
natural logarithm, i is the
imaginary unit, and cos and sin are the
trigonometric functions cosine and sine...
- the real numbers, and the
vertical y-axis,
called the
imaginary axis, is
formed by the
imaginary numbers. The
complex plane allows for a
geometric interpretation...
