[julia-users] Why do I get BoundsError() when trying to range an array with another array in a for loop?

[Albert Díaz]

*using Polynomialx=[-1:1:2]inter=polyval(Poly([1,-2,1]),x)for n in 
[x[1]:x[end]]        if inter[n]==0        println("root in x=",n)endend*

I get a BoundsError() and I don't know how could I fit the x range in the n 
array to evaluate different values in inter each time the for loop occurs.