finding four solution in an interval
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(e^-2x)sin(x+4)=0.4 has four solutions in the interval-5<x <5. how do i find these solutions?
回答（1 个）
Roger Stafford
2016-4-7
Use matlab function 'fzero' to find solution to
fun = @(x) exp(-2*x).*sin(x+4)-0.4;
x = fzero(fun,x0);
where x0 is an approximation for the solution. In your case you will have to do this four times with four different values of x0.
1 个评论
Yashendra Mohan
2022-1-30
I am using symbolic variables, which are in an array. Here 'A' is my array containing symbolic variable 'b'.
yy = zeros(1,5);
for n = 1:5
yy(n) = vpasolve(det(A)==0,b,[0,100],'Random',true);
end
In this above code, I am using for loop. Here I am running it 5 times which will give me 5 solutions in that interval. Is there any way to get all solutions in a particular function.
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2016-4-7
2022-1-30
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