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phasor (a portmanteau of phase vector) is a complex number representing a sinusoidal function whose amplitude (A), and initial phase (θ) are time-invariant...

In quantum mechanics, a probability amplitude is a complex number used for describing the behaviour of systems. The square of the modulus of this quantity...

signal is its magnitude compared with a reference value. There are various definitions of amplitude (see below), which are all functions of the magnitude...

direction). Further φ ( z ) {\displaystyle \varphi (z)} is the complex valued amplitude of the infinitesimal streamfunction perturbations applied to the...

signal is a complex-valued function that has no negative frequency components.  The real and imaginary parts of an analytic signal are real-valued functions...

A(\mathbf {r} )=u(\mathbf {r} )e^{ikz}} where u represents the complex-valued amplitude which modulates the sinusoidal plane wave represented by the exponential...

statistics, complex random variables are a generalization of real-valued random variables to complex numbers, i.e. the possible values a complex random variable...

} The complex-valued signal V(t) is called the analytic representation of the real-valued, measurable signal v(t). In fluid dynamics, complex functions...

introduced complex form of the plane wave can be simplified by using a complex-valued amplitude C {\displaystyle C\,} substitute the real valued amplitude A {\displaystyle...

Amplitude modulation (AM) is a modulation technique used in electronic communication, most commonly for transmitting messages with a radio wave. In amplitude...

t_{1})=A(t_{1})\,e^{+it}+A^{\ast }(t_{1})\,e^{-it},} with A(t1) a complex-valued amplitude to the zeroth-order solution Y0(t, t1) and i2 = −1. Now, in the...

the voltage and current amplitudes, while the second equation defines the phase relationship. This representation using complex exponentials may be justified...

possible to determine a separate P wave axis. The duration, amplitude, and morphology of the QRS complex are useful in diagnosing cardiac arrhythmias, conduction...

field complex amplitudes, i.e., considering phase shifts in addition to their amplitudes. Those underlying equations supply generally complex-valued ratios...

wave may have greater intensity (constructive interference) or lower amplitude (destructive interference) if the two waves are in phase or out of phase...

different instruments sounds different. Sine waves of arbitrary phase and amplitude are called sinusoids and have the general form: y ( t ) = A sin ⁡ ( ω...

field of ship design and design of other floating structures, a response amplitude operator (RAO) is an engineering statistic, or set of such statistics...

friction, etc., complex harmonic motion often has additional forces to dissipate the initial energy and lessen the speed and amplitude of an oscillation...

i} represents the imaginary unit, A {\displaystyle A} are the complex-valued amplitudes, and k = ω / c {\displaystyle k=\omega /c} is the wavenumber....

an iterative phase retrieval algorithm for retrieving the phase of a complex-valued wavefront from two intensity measurements acquired in two different...