Finding the intersection of a function with its derivative

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Sebastian Ciuban 2013-12-15

评论： Sebastian Ciuban 2013-12-15

I have this code:

x=sym('x'); f=2*sin(log(x)).^2; g=diff(f); h1=ezplot(f); set(h1,'Color','red') hold on ezplot(g) grid on

Now, how I can find the value of the points where they intersect?

Wayne King 2013-12-15

编辑：Wayne King 2013-12-15

How about:

syms x
f=2*sin(log(x)).^2; 
g=diff(f); 
solve(f-g) % or solve(f==g)

Sebastian Ciuban 2013-12-15

I have tried that but I wasn't sure it was correct :)

Sebastian Ciuban 2013-12-15

That is the thing that I want to know :). The value of all points where those 2 curves intersect

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