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## #1 2013-09-18 20:35:46

Gerasimov
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### Hi :)

I'm from Ukraine.

## #2 2013-09-18 20:59:56

bobbym

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### Re: Hi :)

Hi Gerasimov;

Welcome to the forum.

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #3 2013-09-19 03:06:21

anonimnystefy
Real Member

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### Re: Hi :)

Hi Gerasimov

Welcome to the forum!

Last edited by anonimnystefy (2013-09-19 18:22:09)

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

## #4 2013-09-19 16:55:56

bob bundy
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### Re: Hi :)

hi Gerasimov

Welcome to the forum.

Bob

You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

## #5 2013-09-20 02:00:50

prathima
Member

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### Re: Hi :)

hi....
i recently joined this forum.
please help me by suggesting some intresting topics for my seminar.

by
prathima

## #6 2013-09-20 02:02:55

bobbym

Online

### Re: Hi :)

Hi prathima;

Welcome to the forum. Interesting topics on what?

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #7 2013-09-20 02:07:41

prathima
Member

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### Re: Hi :)

in mathematics
actually i selected pattrens in nature. but this topic has less in maths and more about biology

## #8 2013-09-20 02:10:04

bobbym

Online

### Re: Hi :)

What type of math do you like? What type are you good at? What is the age and type of the audience?

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #9 2013-09-20 02:17:25

prathima
Member

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### Re: Hi :)

i am doing M.sc now. my audience are  classmates and my lecturers.
i like maths in nature and vedic maths. maths in nature means topic like role of fibonacci sequence in nature.

## #10 2013-09-20 02:23:58

bobbym

Online

### Re: Hi :)

Then you can do it about the Fibonacci Sequence. There is probably more literature on that sequence than all the rest put together. There is even a journal devoted to it.

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #11 2013-09-20 02:31:11

prathima
Member

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### Re: Hi :)

which is that journal.. my time limit is 15min.
in that time i have to complete fractals, fibonacci spiral, farmats spiral, logarithmic spiral and other pattrens that exist in nature.
i dont have proper information regarding logarithmic spiral and Lindenmayer system in fractals

## #12 2013-09-20 02:37:50

bobbym

Online

### Re: Hi :)

They call it The Fibonacci Quarterly.

I did some work with L systems when I was a beta tester for Mupad.

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #13 2013-09-20 02:45:08

prathima
Member

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### Re: Hi :)

ok... can you give me some explanation and some simple example on branching angle, distance between nodes and number of branches per branch point in L system. i saw an example on algae but i dint understand it.

## #14 2013-09-20 02:46:00

bobbym

Online

### Re: Hi :)

Hi;

Have you ever seen a Barnsley fern?

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

prathima
Member

Offline

no...

## #16 2013-09-20 02:49:43

bobbym

Online

### Re: Hi :)

Hmmm, is it wise to mention some topic that you know less than even I do? You could always leave it out...

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

prathima
Member

Offline

## #18 2013-09-20 03:01:51

bobbym

Online

### Re: Hi :)

I can give you some nice visual images for an L system but I am not an expert on them. They might make a nice display.

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #19 2013-09-20 03:03:35

prathima
Member

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### Re: Hi :)

okay.
then what are logarithmic spirals

## #20 2013-09-20 03:08:21

bobbym

Online

### Re: Hi :)

A logarithmic spiral is best described right here.

http://en.wikipedia.org/wiki/Logarithmic_spiral

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #21 2013-09-20 03:11:29

prathima
Member

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### Re: Hi :)

this is similar to fibonacci spirals

## #22 2013-09-20 03:23:48

bobbym

Online

### Re: Hi :)

Yes very much so.

There is an online site that will generate L systems. It is better than mathematica for this job.

http://www.kevs3d.co.uk/dev/lsystems/#

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #23 2013-09-20 22:56:40

prathima
Member

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### Re: Hi :)

thank you
which is that journal devoted to fibonacci sequence

## #24 2013-09-20 22:57:34

bobbym

Online

### Re: Hi :)

It is called the Fibonacci Quarterly. A university library would have it in the reference section.

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

prathima
Member

Offline

thank you