Noun
imaginary unit (plural imaginary units)
(number theory, complex analysis, quaternion theory) An imaginary number (in the case of complex numbers, usually denoted
i
{\displaystyle i}
) that is defined as a solution to the equation
x
2
=
−
1
{\displaystyle x^{2}=-1}
.
Alternatively it follows from the identity : (where i denotes the usual imaginary unit ) and hence from the multiplicative property of determinants of square matrices. Source: Internet
MATLAB associates both and with the imaginary unit, although or is preferable, for speed and improved robustness. Source: Internet
Here, the imaginary unit is the (four-dimensional) volume element, and is the unit vector in time direction. Source: Internet
The I and Q signals can be combined into a complex-valued signal I+jQ (where j is the imaginary unit ). Source: Internet
In bivectors and biquaternions an additional imaginary unit is used. Source: Internet
It is sometimes possible to identify the presence of an imaginary unit in a physical equation. Source: Internet