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A population is represented by several individuals in the chromosomes.
The initial values and the ODE parameters are represented by a chromosome.
The chromosome is a *n* vector of real values.
For example, the following first order differential equation
*a*_{1}*

*f*'(

*t*)+

*a*_{0}*

*f*(

*t*)=

*b*is represented as:

*Christoph Reich*

*1999-12-22*