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## #1 2017-03-27 09:38:00

MathsIsFun
Registered: 2005-01-21
Posts: 7,691

### Partial Derivatives

A new page:

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

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## #2 2017-03-27 12:45:52

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

### Re: Partial Derivatives

Hi;

∂ is called "del" or "dee" or "curly dee"

I did not know that, I just called them partial y, partial x etc.

All the examples check out, nice page!

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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## #3 2017-03-27 14:30:04

ganesh
Registered: 2005-06-28
Posts: 28,436

### Re: Partial Derivatives

Hi MathsIsFun,

This is a neat page. Thanks.

I feel Euler's chain rule may be included.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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## #4 2017-03-27 20:34:25

Member
Registered: 2016-04-16
Posts: 1,086

### Re: Partial Derivatives

Some people used to call it "daabaa"  like "daabaa y by daabaa x'

{1}Vasudhaiva Kutumakam.{The whole Universe is a family.}
(2)Yatra naaryasthu poojyanthe Ramanthe tatra Devataha
{Gods rejoice at those places where ladies are respected.}

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## #5 2017-03-27 20:46:53

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

### Re: Partial Derivatives

Hi;

Why?

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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## #6 2017-03-27 21:26:30

Member
Registered: 2016-04-16
Posts: 1,086

### Re: Partial Derivatives

No reason why.

{1}Vasudhaiva Kutumakam.{The whole Universe is a family.}
(2)Yatra naaryasthu poojyanthe Ramanthe tatra Devataha
{Gods rejoice at those places where ladies are respected.}

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## #7 2017-03-27 21:27:27

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

### Re: Partial Derivatives

Does that name mean something?

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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## #8 2017-03-27 22:03:36

Member
Registered: 2016-04-16
Posts: 1,086

### Re: Partial Derivatives

Daabaa is roadside eating place but it has no connection.

{1}Vasudhaiva Kutumakam.{The whole Universe is a family.}
(2)Yatra naaryasthu poojyanthe Ramanthe tatra Devataha
{Gods rejoice at those places where ladies are respected.}

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## #9 2017-03-27 22:04:18

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

### Re: Partial Derivatives

Hi;

Okay, thanks.

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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## #10 2017-03-27 23:24:49

Member
From: Planet Mars
Registered: 2016-11-15
Posts: 820

### Re: Partial Derivatives

Hi, thickhead are you talking of dhabaa which we commonly call in our Indian language?

Practice makes a man perfect.
There is no substitute to hard work
All of us do not have equal talents but everybody has equal oppurtunities to build their talents.-APJ Abdul Kalam

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## #11 2017-03-27 23:36:24

Member
Registered: 2016-04-16
Posts: 1,086

### Re: Partial Derivatives

Yes, something similar but the pronunciation is clearly "d" but not "dh" associated with it.

{1}Vasudhaiva Kutumakam.{The whole Universe is a family.}
(2)Yatra naaryasthu poojyanthe Ramanthe tatra Devataha
{Gods rejoice at those places where ladies are respected.}

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## #12 2017-03-27 23:38:57

Member
From: Planet Mars
Registered: 2016-11-15
Posts: 820

### Re: Partial Derivatives

From which state you are?

Practice makes a man perfect.
There is no substitute to hard work
All of us do not have equal talents but everybody has equal oppurtunities to build their talents.-APJ Abdul Kalam

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## #13 2017-03-28 01:42:13

Member
Registered: 2016-04-16
Posts: 1,086

### Re: Partial Derivatives

I am originally from Karnataka, now staying in Thane ,Maharashtra.

{1}Vasudhaiva Kutumakam.{The whole Universe is a family.}
(2)Yatra naaryasthu poojyanthe Ramanthe tatra Devataha
{Gods rejoice at those places where ladies are respected.}

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## #14 2017-03-28 16:32:21

MathsIsFun
Registered: 2005-01-21
Posts: 7,691

### Re: Partial Derivatives

Thanks everyone!

I have also heard "day", so they say "day-f day-x" but that doesn't seem common.

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

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## #15 2017-03-28 21:32:35

Member
From: Planet Mars
Registered: 2016-11-15
Posts: 820

### Re: Partial Derivatives

I am originally from Karnataka, now staying in Thane ,Maharashtra.

Oh, thickhead that means you are Kanadda, right. Are you from Bangalore?

Practice makes a man perfect.
There is no substitute to hard work
All of us do not have equal talents but everybody has equal oppurtunities to build their talents.-APJ Abdul Kalam

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## #16 2017-06-19 21:41:16

Member
Registered: 2016-04-16
Posts: 1,086

### Re: Partial Derivatives

Not from Bengaluru but from Kumta of Karwar district.

Last edited by thickhead (2017-06-19 21:41:49)

{1}Vasudhaiva Kutumakam.{The whole Universe is a family.}
(2)Yatra naaryasthu poojyanthe Ramanthe tatra Devataha
{Gods rejoice at those places where ladies are respected.}

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