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Real numbers do not exist for a computer [Les nombres réels n'existent par pour un ordinateur].
The Verhulst dynamics describes the
variation of a population of individuals with the following iteration:
2
X = (R+1)X - RX
n n-1 n-1
In the upper animation, the five following different valid formulations of
the Verhulst dynamics are used:
X = X + (R(X - (X X )))
n n-1 n-1 n-1 n-1
X = (RX ) + ((1 - (RX ))X )
n n-1 n-1 n-1
X = (((R+1) - (RX ))X )
n n-1 n-1
X = ((R+1)X ) - ((RX )X )
n n-1 n-1 n-1
X = ((R+1)X ) - (R(X X ))
n n-1 n-1 n-1
with the same initial value:
X = 0.5
0
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(CMAP28 WWW site: this page was created on 01/22/1996 and last updated on 03/16/2025 13:18:33 -CET-)
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