Maximize/Minimize functions in a region?

Questions
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1

Hi! How can I minimize my fucntion in region?
The fucntion give me NDSolve, but i cant select right syntax for minimize function.

Minimize[y1[t]/.sol, tE{3,10}], Minimize[{y1[t]/.sol, 3<=t<=10}, t}]
  • dont work…
2

Since your answer lacks many details I can only guess where it goes wrong. I presume you have something like:

sol = NDSolve[...........,y1];

I guess you can find the minimum of this like so:

    f = y1 /. First[sol];
    FindMinimum[f[t],{t,6,3,10}]

Without an example it is very hard to guess!

3

Of course! This is local optimization! Its realy work in this functuion created by interpolation notation NdSolve