Rewrite the recursive bisection root finding function from lecture to be iterative (using a while loop). The function declaration should be root = bisectIter(f,a,b,tol). The inputs to the function are:

•  f a handle to the function
• ? a the left endpoint of the interval
• ? b the right endpoint of the interval
• ? tol the tolerance to nd the root within

The output of the function root is a root of the function satisfying abs(root-r)

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