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MathGroup Archive 2004

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Interpolating function

  • To: mathgroup at smc.vnet.net
  • Subject: [mg48676] Interpolating function
  • From: Guibout <guibout at ifrance.com>
  • Date: Thu, 10 Jun 2004 02:43:19 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,
When I save an interpolating function obtained from NDSolve in a file, 
it looks like for the function x[t]:

{{x -> InterpolatingFunction[
{{minimum time, max time}},
{1, 5, False, Real, {3}, {0}},
{{time step}},
{{0, 1, 3, 6, 9, 12, 16, 20, 24, 28, 33, 38, 43, 48, 53, 59, 65, 71, 77, 
83, 89, 95, 101, 107, 113},
	{value of the variable at each time step}}]
}}

The object InterpolatingFunction seems to contain
the boundary of the interval,
some obscure numbers to me {1, 5, False, Real, {3}, {0}},
the times at which the values of x are known
other obscures numbers {0, 1, 3, 6, 9, 12, 16, 20, 24, 28, 33, 38, 43, 
48, 53, 59, 65, 71, 77, 83, 89, 95, 101, 107, 113}
the values of x for each t

Does anyone know what the obscures numbers are? (I Guess Real is for 
Real  value function)
Thanks
Vincent


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