Using fzero on function

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Pawel Krenz
Pawel Krenz 2021-1-3
评论： Pawel Krenz 2021-1-3
Trying to make a function in Q2 and plotting it in Q2_answer as well as finding the two roots using fzero. I do recive "Not enough input arguments." and I don't understand how to solve this.
function y = Q2(x)
y = x.^6-2.*cos(x);
end
x0 = 2; % initial point
x = linspace(-3,3,100);
plot(x,Q2);
z = fzero(Q2,x0)

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采纳的回答

David Hill
David Hill 2021-1-3
y=@(x)x.^6-2.*cos(x);
x=linspace(-3,3,100);
plot(x,y(x));
z(1)=fzero(y,-1);
z(2)=fzero(y,1);

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