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Team:Evry/LogisticFunctions
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<p>When we started to model biological behaviors, we realised very soon that we were going to need a function that simulates a non-exponential evolution, that would include a simple speed control and a maximum value.</p> | <p>When we started to model biological behaviors, we realised very soon that we were going to need a function that simulates a non-exponential evolution, that would include a simple speed control and a maximum value.</p> | ||
<p>Such functions, named logistic functions were introduced around 1840 by M. Verhulst.</p> | <p>Such functions, named logistic functions were introduced around 1840 by M. Verhulst.</p> | ||
| - | <p> | + | <p><img src="http://upload.wikimedia.org/math/b/e/3/be3fb0b303c46c4d582104ed4ef42636.png"/></p> |
<p>These functions looked perfect, but we needed more control : we needed to set a starting value and a precision. The addition of the parameters d and p allowed us to directly control these crucial informations. </p> | <p>These functions looked perfect, but we needed more control : we needed to set a starting value and a precision. The addition of the parameters d and p allowed us to directly control these crucial informations. </p> | ||
<p>NOTRE EQUATION | <p>NOTRE EQUATION | ||
Revision as of 12:53, 21 August 2013
Logistic functions :
When we started to model biological behaviors, we realised very soon that we were going to need a function that simulates a non-exponential evolution, that would include a simple speed control and a maximum value.
Such functions, named logistic functions were introduced around 1840 by M. Verhulst.
These functions looked perfect, but we needed more control : we needed to set a starting value and a precision. The addition of the parameters d and p allowed us to directly control these crucial informations.
NOTRE EQUATION
References:
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