. Design for a brain. Brain -- Physiology; Central nervous system -- Mathematical models; Neurophysiology. A B Figure 22/2/1 : Two fields of the system {xx and x2) of S. 22/2. unbroken elastic the system behaves as A, with broken as B. the strand is stretched to position X it breaks. With When shows that the field to its right may not be used (for at X the elastic will break). Equivalent to this is the view which treats them as a 3- variable system : scl9 x2, and k. This system is absolute, and has one field, shown in Figure 22/2/2. In this form, the step-function must be brought into the cano
. Design for a brain. Brain -- Physiology; Central nervous system -- Mathematical models; Neurophysiology. A B Figure 22/2/1 : Two fields of the system {xx and x2) of S. 22/2. unbroken elastic the system behaves as A, with broken as B. the strand is stretched to position X it breaks. With When shows that the field to its right may not be used (for at X the elastic will break). Equivalent to this is the view which treats them as a 3- variable system : scl9 x2, and k. This system is absolute, and has one field, shown in Figure 22/2/2. In this form, the step-function must be brought into the canonical equations. A possible form is : dk (K K dt = q[-2 +2 where K is the initial value of the variable k, and q is large and positive. As qââ > oo, the behaviour of k tends to the step- function form. Another method is to use Dirac's ^-function, defined by S(u) = 0 if u ?±0, while if u = 0, d(u) tends to infinity in such a way that rco I d(u)du = 1. J â00 233 + - tanh {q(X - x,)} - k (4). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ashby, William Ross. New York : Wiley
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Keywords: ., bookcentury1900, bookpublishernewyorkwiley, booksubjectneurophys
