How would I find all the roots of the function
I know all sine functions have multiple roots and so this function may also have multiple roots but how would I find all these roots? Using matlab fzero which uses the brackect criteria for the existence of solution only gives one root to the function.
So plotting the function might help but I think I have problems understanding what the graph is telling me. Can someone help to interpret the graph for me? How would I know the root(s) of the function? Atleast, I know one root is 0.25957 using fzero.
fplot( @(x) sin(10*x)-2*x, [-.5,.5])