Hi, I'm having a problem optimizing a function using Maple. To be perfectly honest, it took me quite a while to realize that the problem was with maple; as it stands, changing the limits of optimization affects the final answer, despite the maxima always remaining between the limits. That is to say, given a function whose maxima is at, say, x=5, trying to find the maxima between the limits 3-9 gives a completely different than finding the maxima between the limits 4 and 6. This isn't a poorly behaved function, as evidenced by the attached graphs, so I'm at a loss to explain this behaviour.