10/29/2009, 03:26 PM

11/05/2009, 03:48 PM

this days in sci.math:

Quote:On Wed, 4 Nov 2009 11:14:42 -0800 (PST), "Dave L. Renfro"

<renfr1dl@cmich.edu> wrote:

> >O-K, this may be a well-known folklore math quote,

> >but a google-web search gives only 2 hits (both being

> >the same book) and a google-book search gives only

> >7 hits (5 essentially different items, one of which

> >is the google-web hit I got):

> >

> >"A zero of order zero is a regular point at which the

> >function is not zero."

11/07/2009, 07:06 AM

(11/05/2009, 03:48 PM)Gottfried Wrote: [ -> ]> >"A zero of order zero is a regular point at which theIs that the same as a pole of order zero? Hahaha

> >function is not zero."

11/07/2009, 07:59 AM

(11/07/2009, 07:06 AM)andydude Wrote: [ -> ](11/05/2009, 03:48 PM)Gottfried Wrote: [ -> ]> >"A zero of order zero is a regular point at which theIs that the same as a pole of order zero? Hahaha

> >function is not zero."

It is kinda opposite. You get the order of a zero at a by dividing by (z-a)^m.

It is the maximum m such that f(z)/(z-a)^m is still holomorphic at a.

In the powerseries development it is the index of the first non-zero term,

e.g. f(z) = f_m (z-a)^m + f_{m+1)(z-a)^{m+1} + ....

So f(z)/(z-a)^m can not be 0 at a.

## carrythomas

11/09/2009, 08:34 AM

Hi all,

Once a boy proposed to girl who is the daughter of his maths sir, now he want to proposed her in a class. He stand up and go to blackboard.

He try to say something from this Eqation

"A=B=C,

so A=B, B=C and B=A, B=C i.e A=C"

Sir doesn't understand and he asked to him, what is this??

He replied "A=me, B= You, C= Your Daughter..

now A=B,B=C that means I love You, You love your Daughter..

B=A,B=C means You love me, You love your Daughter,

So A=C means I love your Daughter...."

Once a boy proposed to girl who is the daughter of his maths sir, now he want to proposed her in a class. He stand up and go to blackboard.

He try to say something from this Eqation

"A=B=C,

so A=B, B=C and B=A, B=C i.e A=C"

Sir doesn't understand and he asked to him, what is this??

He replied "A=me, B= You, C= Your Daughter..

now A=B,B=C that means I love You, You love your Daughter..

B=A,B=C means You love me, You love your Daughter,

So A=C means I love your Daughter...."

11/09/2009, 09:32 AM