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Thanks

René

- Thread starter Repetit
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- #1

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Thanks

René

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Tide

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Mathematically, it's like this:

[itex]\frac {1}{x}[/itex] and [itex]- \frac {1}{x}[/itex] cancel exactly when added together (we ignore x = 0 for this discussion) but [itex]\frac {1}{x-\epsilon}[/itex] and [itex]-\frac {1}{x+\epsilon}[/itex] do not cancel.

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