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164 bytes removed ,  10:02, 22 August 2012
are the parameters used to chose one specific element of the family of functions.
For example, let's say we want need to implement compute the time evolution of the elongation ofa function that given spring for different values of the spring constant
<math> k </math>  and the initial elongation  <math> x_0 </math>  of a spring, computes the time evolution of the elongation <math> x (t ; x_0, k) </math> by solving the Cauchy problem <math> x' = - k x\\ x(0) = x_0 </math>
==== Solution ====
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