Make an implicit function in matlab?

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David Sjöberg
David Sjöberg 2017-5-15
编辑： Torsten 2017-5-15
I need matlab to create a function for me. I have,
y=e*h*sqrt(4ah+(1-e)*a*h)+(1-e*h)*sqrt((1-e)*2*h) in the interval 0<=e<=1 and 0<=h<=1.
I need a function of max y as a function of h (i.e. e is implicit). How can can matlab create this?
Thanks!

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回答（1 个）

Torsten
Torsten 2017-5-15
Use "fminbnd" to search for the minimum of the function
f=@(x)-(x*h*sqrt(4a*h+(1-x)*a*h)+(1-x*h)*sqrt((1-x)*2*h))
in the interval [0:1]
Best wishes
Torsten.
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David Sjöberg
David Sjöberg 2017-5-15
Thanks again. I get "undefined variable h". But I still get the same error of conversion if I define h as a variable. Sorry for being slow to understand.
Torsten
Torsten 2017-5-15
I modified the code from above.
Best wishes
Torsten.

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