Hi,

I want to understand the term of dx better. I understand that
intergral(dx) means under the factor of x but I sometimes see things
like.

(d*dx)/dt and things like that. What does that mean? What does d alone
mean? How can we multiply dx and dx?

Thanks

From:	W.H. Humphrey
Subject:	Re: Help needed understanding dx,dy terms in integrals
Date:	Mon, 24 Jan 2005 03:21:51 -0500

"Student911" wrote in message
news:1106510735.243566.216100@f14g2000cwb.googlegroups.com...
> Hi,
>
> I want to understand the term of dx better. I understand that
> intergral(dx) means under the factor of x but I sometimes see things
> like.
>
> (d*dx)/dt and things like that. What does that mean? What does d alone
> mean? How can we multiply dx and dx?
>
> Thanks
>

Are you questions in regards to something similar to
Integral of (df/dx)dt?

Perhaps you have encountered a partial derivative?
d^2f/(dxdy) where the "d"s are partials.

You need to rephrase your questions and explain more if you indeed want
help.

--
W.H. Humphrey

Furnulum pani nolo

From:	bryant_j_j at yahoo.com
Subject:	Re: Help needed understanding dx,dy terms in integrals
Date:	23 Jan 2005 16:54:46 -0800

Lynn is right... you ahve not expressed your inquiry clearer. i also do
not know what you mean by "under the factor of x" and i have never seen
things like (d*dx)/dt... so try to pose your question clearer and get
the languange right so people can understand.

From:	Lynn Kurtz
Subject:	Re: Help needed understanding dx,dy terms in integrals
Date:	Sun, 23 Jan 2005 20:37:27 GMT

On 23 Jan 2005 12:05:35 -0800, "Student911"
wrote:

>Hi,
>
>I want to understand the term of dx better. I understand that
>intergral(dx) means under the factor of x

I have no idea what you mean by "under the factor of x".

> but I sometimes see things like.
>(d*dx)/dt and things like that.

Actually I doubt you have seen (d*dx)/dt; I certainly haven't until
now.

>What does that mean? What does d alone
>mean? How can we multiply dx and dx?
>
>Thanks

I think you should schedule an appointment with your teacher. You have
a lot to talk about.

--Lynn

From:	A N Niel
Subject:	Re: Help needed understanding dx,dy terms in integrals
Date:	Sun, 23 Jan 2005 15:54:59 -0500

In article , Lynn Kurtz

wrote:

> I think you should schedule an appointment with your teacher. You have
> a lot to talk about.

If you are a student of first-year calculus, this is the best idea.

Later when (if) you study differential geometry, you will learn about
differential forms, and a more sophisticated meaning for things like
dx.

From:	Student911
Subject:	Re: Help needed understanding dx,dy terms in integrals
Date:	23 Jan 2005 16:39:25 -0800

Can anyone please try to answer some of my questions??

A N Niel wrote:
> In article , Lynn Kurtz
> wrote:
>
> > I think you should schedule an appointment with your teacher. You
have
> > a lot to talk about.
>
> If you are a student of first-year calculus, this is the best idea.
>
> Later when (if) you study differential geometry, you will learn about
> differential forms, and a more sophisticated meaning for things like
> dx.

From:	Student911
Subject:	Re: Help needed understanding dx,dy terms in integrals
Date:	23 Jan 2005 12:42:11 -0800

Well Lynn. I think you should do the same. Since you couldn't
understand anything I said.

From:	Lynn Kurtz
Subject:	Re: Help needed understanding dx,dy terms in integrals
Date:	Mon, 24 Jan 2005 02:16:20 GMT

On 23 Jan 2005 12:42:11 -0800, "Student911"
wrote:

>Well Lynn. I think you should do the same. Since you couldn't
>understand anything I said.

Ignorant people can learn. Fools don't recognize good advice when they
see it. I have most likely taught calculus more years than you have
been alive. You need more help than anyone is going to give you by
typing a paragraph or two. Go see your teacher.

--Lynn

From:	The World Wide Wade
Subject:	Re: Help needed understanding dx,dy terms in integrals
Date:	Sun, 23 Jan 2005 18:30:51 -0800

In article
<1106510735.243566.216100@f14g2000cwb.googlegroups.com>,
"Student911" wrote:

> I want to understand the term of dx better. I understand that
> intergral(dx) means under the factor of x but I sometimes see things
> like.
>
> (d*dx)/dt and things like that. What does that mean? What does d alone
> mean? How can we multiply dx and dx?

This makes little sense and like others I'll recommend you see
your teacher or get a tutor pronto.