Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

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I feel so grateful to you for giving me advice.

Now I have put a link to your site from mine.

I have removed a message to install a Japanese language pack.

Please visit my site.

http://www.freewebs.com/keiichi_suzuki/

I deleted the message in my error.

Let x=x(t), y=y(t), z=z(t)

then

xyz = ∫xy(dz/dt)dt + ∫yz(dx/dt)dt + ∫zx(dy/dt)dt

= ∫xydz + ∫yzdx + ∫zxdy

xyz means difference of volume of rectangular parallelepipeds.

I do not know what ∫xydz , ∫yzdx and ∫zxdy means.

The story behind the integral relationship

Please visit below

http://www.freewebs.com/keiichi_suzuki/

Click Bedroom(Profile, etc)

Good night

krassi_holmz wrote:

Yes, it's just a matter of viewpoint.

Thank you

>

krassi_holmz wrote:

And we can form something like that for definite integrals:

>

Please visit below

http://www.freewebs.com/keiichi_suzuki/math/sekibun0.html

>Looks good, szk_kei, though I haven't checked if it is right or not.

Thank you

http://www.freewebs.com/keiichi_suzuki/

There are some topics in my site.

Taylor Series.

What is the necessary and sufficient condition for the intervals of n of the degree as expressed below ?

f(x)=A0 + An(x-a)^n + A2n(x-a)^2n + A3n(x-a)^3n + A4n(x-a)^4n + +

Please visit my site

http://www.freewebs.com/keiichi_suzuki/

I'm not mathematician.

I'm working for a manufacturer.

My name is Keiichi Suzuki.

I'm a 48-year-old male.

I'm a Japanese.

I publish online mathematics created by myself,

including arithmetic (mathematics) for children.

http://www.freewebs.com/keiichi_suzuki/

My site is listed in

http://dir.yahoo.com/Science/Mathematics/Calculus/

Please visit my site.

My definition is only differentiable.

When I show an expression with proof, someone says "It is only an application of integration by parts",

someone says "It is simple and beautiful".

y=f(x):differentiable

(xy)'=y+x(dy/dx)

xy+C=∫ydx + ∫x(dy/dx)dx

=∫y dx + ∫x dy

If you want to sea its detail, please visit my site http://www.freewebs.com/keiichi_suzuki/

->[The Study (Mathematics created by myself)]

**szk_kei**- Replies: 39

Relationship between the integral of the function and

the integral of its inverse function

INTGR(y)dx + INTGR(x)dy = xy + C

Please click below.

http://www.freewebs.com/keiichi_suzuki/

I work for a certain manufacturer as a system engineer and etc.

**szk_kei**- Replies: 7

My name is Keiichi Suzuki.

I'm a 48-year-old male.

I'm a Japanese.

I publish online mathematics created by myself,

including arithmetic (mathematics) for children.

http://www.freewebs.com/keiichi_suzuki/

My site is listed in

http://dir.yahoo.com/Science/Mathematics/Calculus/

Please visit my site.

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