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Team:Evry/LogisticFunctions
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<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><img src="http://upload.wikimedia.org/math/b/e/3/be3fb0b303c46c4d582104ed4ef42636.png"/></p> | <p><img src="http://upload.wikimedia.org/math/b/e/3/be3fb0b303c46c4d582104ed4ef42636.png"/></p> | ||
| - | <p>These functions looked perfect, but we needed <b>more control</b> : 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>These functions looked perfect, but we needed <b>more control</b> : 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 : g(d)=p. </p> |
<p><img src="https://static.igem.org/mediawiki/2013/8/83/FonctionLogistique.png" width="200px"/><img src="https://static.igem.org/mediawiki/2013/0/05/CourbeLogistique.png"/></p> | <p><img src="https://static.igem.org/mediawiki/2013/8/83/FonctionLogistique.png" width="200px"/><img src="https://static.igem.org/mediawiki/2013/0/05/CourbeLogistique.png"/></p> | ||
Revision as of 16:06, 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 : g(d)=p.
References:
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