- #1

FeDeX_LaTeX

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- Thread starter FeDeX_LaTeX
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- #1

FeDeX_LaTeX

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- #2

Nabeshin

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1) You did your algebra wrong.

2) Your assumptions are wrong.

3) Your theory is wrong.

Examples of 1 abound. An example of #2 would be something like "What is the gravitational acceleration at the center of the Earth? Well, Gravitational force is Gm/r^2, and so at the center r=0 and it diverges". Obviously the incorrect assumption is that we can treat all the mass of the earth as concentrated at a point while inside its structure.

An example of #3 might be singularities which appear in Einstein's General Relativity. Many people believe these singularities are artifacts which merely appear due to the lack of a quantum theory of gravity, rather than physical objects. I suppose, in a way, this is a special case of #2 where the assumption is fundamental to your theory. But the essential difference is #2 is a modeling error, whereas #3 is a theoretical error.

- #3

rcgldr

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- #4

Studiot

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Like your answer, Nabeshin.

- #5

Bob S

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http://en.wikipedia.org/wiki/L'Hôpital's_rule

Bob S

- #6

Nabeshin

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1.5) Bad choice of coordinates.

For example, schwarzschild coordinates are singular at the event horizon of a black hole, even though there is nothing particularly singular about this location. Of course, there are many other trivial examples you could make up with just applying some singular transformation to normal Cartesian coordinates, but I like this one :)

- #7

JerryClower

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As far as physics and mathematics are concerned, there is not function for dividing by 0.

- #8

rcgldr

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- #9

Eric McClean

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Deviation by zero is impossible.

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