FACTOID # 3: Andorrans live the longest, four years longer than in neighbouring France and Spain.
 
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Encyclopedia > Pierre François Verhulst

Pierre François Verhulst (October 28, 1804 - February 15, 1849, Brussels, Belgium) was a mathematician and a doctor in number theory from the University of Ghent in 1825. Verhulst published in 1838 the logistic demographic model: October 28 is the 301st day of the year (302nd in leap years) in the Gregorian Calendar, with 64 days remaining. ... 1804 was a leap year starting on Sunday (see link for calendar). ... February 15 is the 46th day of the year in the Gregorian Calendar. ... 1849 was a common year starting on Monday (see link for calendar). ... Emblem of the Brussels-Capital Region Flag of The City of Brussels Brussels (Dutch: Brussel, French: Bruxelles, German: Brüssel) is the capital of Belgium and is considered by many to be the de facto capital of the European Union, as two of its three main institutions have their headquarters... A mathematician is a person whose area of study and research is mathematics. ... Traditionally, number theory is that branch of pure mathematics concerned with the properties of integers. ... Ghent University (in Dutch, Universiteit Gent, abbreviated UGent) is one of the two large Flemish universities. ... 1825 was a common year starting on Saturday (see link for calendar). ... 1838 was a common year starting on Monday (see link for calendar). ... The logistic map is a polynomial mapping, often cited as an archetypical example of how complex, chaotic behaviour can arise from very simple non-linear dynamical equations. ...

when N(t) represents number of individuals at time t, r the intrinsic growth rate and K number of individuals in equilibrium.


See also:

Population dynamics is the study of marginal and long-term changes in the numbers, individual weights and age composition of individuals in one or several populations, and biological and environmental processes influencing those changes. ... The logistic map is a polynomial mapping, often cited as an archetypical example of how complex, chaotic behaviour can arise from very simple non-linear dynamical equations. ...

References

Verhulst, P. F., (1838). Notice sur la loi que la population pursuit dans son accroissement. Corresp. Math. Phys. 10:113-121.

 

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