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MathGroup Archive 2001

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Solve InterpolatingFunction problem

  • To: mathgroup at smc.vnet.net
  • Subject: [mg31875] Solve InterpolatingFunction problem
  • From: "Jasem Mutlaq" <mutlaqja at ku.edu>
  • Date: Sat, 8 Dec 2001 05:51:55 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

Hello. I obtained an interpolated function from a set of data representing a
velocity curve (increasing & decreasing). I used the following

vr =Interpolation[data];
Solve[vr[x]==0.6,x]

InverseFunction::ifun: Inverse functions are being used. Values may be lost
for multivalued inverses.
Out[221]={{x->1.
InverseFunction[InterpolatingFunction[{{0.,0.95}},<>],1,1][0.6]}}
I'm expecting something like x = 3 or x = 9 (two solutions).

Any suggestions are highly appreciated!

Jasem Mutlaq.







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