Re: Karl Marx on the "derivated" function
- From: "Hero" <Hero.van.Jindelt@xxxxxx>
- Date: 13 Apr 2005 12:13:08 -0700
There's a saying in german, that a peasant won't
eat, what he doesn't know.
You know the tasty calculus-preparation with Cauchy's
limit of course. Before, the basis were infinitely small
values, called dy and dx, smaller than any value, but
somehow mysteriously different from zero, as one
shouldn't divide with zero.
These are still a problem for some students, as this
is often in the threads of sci.math.
Cauchy solved this dilemma by approaching the
winning-post before and then jumping to the
time just after the final moment, replacing the values
of it with the limit.
Marx didn't know about Cauchy. He did choose
a direct method: delta x approaches the zero
and really reaches zero, passing through it, and delta y,
dependent on it, has to follow.
0 / 0, zero divided by zero has an indifferent
value, as a*0 =0. This is true for constants.
But a variable v in proportion to itself,
v divided by v, equals 1, and i think, this
is true also, when it passes through zero.
Just like the direction of travel on a straight
line will never change. And there is more...
So may be You give Marx' preparation
another try. Your mother would say:
tomorrow i'll cook for You cabbage, but
there's nothing wrong with this, so why
You don't eat it?
Hero
.
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- Re: Karl Marx on the "derivated" function
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