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Jun 12 at 6:48 comment added JohnnyB Thanks but that is not what I want to do. For example, the point $x=y=z=0$ is not really a singular point, after appropriately simplifying the expression. So, I don't want such a point discarded but instead the functional form of my expression simplified.
Jun 12 at 6:31 history answered Roland F CC BY-SA 4.0