JonnyMcA Wrote:
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> Hi Anthony,
>
> You are correct and it is an important point, but
> please don't tell my missus, she is a
> mathematician and would kill me. We once a long
> time ago had a rather heated discussion over me
> dividing both sides of an equation by x to get an
> answer as opposed to factorising the equation and
> solving. her argument was x could have been zero,
> my argument was that in this case x was not equal
> to zero. I dont think we spoke for the rest of
> the evening In physics though, most of the
> interesting physics occurs at this point (for
> example phase transitions etc).
>
> Jonny


When I first read that, I thought when you said "In physics though, most of the interesting physics occurs at this point..." that by point, you meant the point of not-speaking with your missus...

Totally misconstrued, my apologies


and FYI - thank for ever so much more elegantly describing the tan proof It's been too long since I had to think through that.