- #1

The Rev

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1) [tex]\frac{\infty}{\infty} = 1[/tex] ?

2) [tex]\frac{0}{0} = 1[/tex] ?

[tex]\phi[/tex]

The Rev

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- Thread starter The Rev
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- #1

The Rev

- 81

- 0

1) [tex]\frac{\infty}{\infty} = 1[/tex] ?

2) [tex]\frac{0}{0} = 1[/tex] ?

[tex]\phi[/tex]

The Rev

- #2

lurflurf

Homework Helper

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Such as

[tex]\lim_{x\rightarrow a}\frac{f(x)}{g(x)}[/tex]

in the case when if f and g both go to 0 (or infinity) as x goes to a

further analysis is needed to decide the limit

These are called indeterminate forms since the rule about a limit of a combination of functions being equal to the individual limits combined the same way does not apply.

There are several forms of indeterminate forms that commonly occur

0/0

infinity/infinity

0^0

1^infinity

infinity-infinity

0*infinity

1/0-1/0

- #3

The Rev

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Is this how they cancel out infinities in renormalization in QM?

- #4

matt grime

Science Advisor

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http://math.ucr.edu/home/baez/renormalization.html

- #5

The Rev

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I was impressed, however, that singer Joan Baez is also an expert on Quantum Mechanics.

[tex]\psi[/tex]

- #6

matt grime

Science Advisor

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- #7

Berislav

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I think they're cousins.matt grime said:

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