User:Gabbe

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Given name:	Gabriel
Family name:	Ehrnst Grundin
Pronounciation (IPA):	ˈɡɑːbriˌɛl æɳʂt ɡrɤnˈdiːn
Date of birth (N.S.):	October 13, 1983
Place of birth:	St. George's Hospital (S:t Görans sjukhus), Stockholm, Sweden
Primary language:	Swedish
Secondary language:	English
Tertiary languages:	German, Arabic
Height:	183cm (6ft)
MBTI:	INTJ (Mastermind)
Blood type:	O+
First Wikipedia edit:	November 16, 2002
Became Admin:	January 21, 2005

Wikipedia:Babel

sv	Den här användaren talar svenska som modersmål.

en-4

This user speaks English at a near-native level.

de-2

Dieser Benutzer hat fortgeschrittene Deutschkenntnisse.

ar-1	هذا المستخدم يعرف مبادئ العربية.

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Hello, I am Gabriel Ehrnst Grundin (born October 13, 1983).

Most perceive me as a introverted, erudite, dour martinet. My interests include languages, Europe, history, etc.

I am a former student of Enskilda Gymnasiet, where I graduated in 2002. After my 450-day tour of duty at S1, I began my studies in Engineering Physics (Teknisk Fysik) at the RIT (KTH) in the fall of 2004.

I also have an account on the Swedish Wikipedia, as well as on Wikimedia Commons and Wikipedia Sources.

Today's passage from The Good Book: 2 Kings 2:23-24
History: George Washington (born February 11, 1731 (Old Style)/February 22, 1732 (New Style))

Pinyin tones:
1	2	3	4	(0/5)
ā	á	ǎ	à	a
ē	é	ě	è	e
ī	í	ǐ	ì	i
ō	ó	ǒ	ò	o
ū	ú	ǔ	ù	u
ǖ	ǘ	ǚ	ǜ	(ü)

Interesting (?) Wikipedians:
- Linus Walleij (contribs), in Sweden known as the author of Copyright Finns Inte, inactive since January 9, 2003
- Gro-Tsen (contribs), David Madore, has an impressive home page, inactive since February 19, 2004

Ancient History:
Further European/World History:

[edit] Playing with LaTeX:

[edit] Implicit differentiation

We have $x y = 1$ , what is $y'(x)$ ?

$\frac{d}{dx} (xy) = \frac{d}{dx} 1$

$x \frac{dy}{dx} + y \frac{dx}{dx} = 0$

$\frac{dy}{dx} = \frac{-y}{x}$

[edit] Integration by substitution

$\int_a^b f(g(x)) g'(x) dx = \int_{g(a)}^{g(b)} f(u) du$

or, with $u = g (x)$ from the start,

$\int_a^b f(u) \frac{du}{dx} dx = \int_{g(a)}^{g(b)} f(u) du$

[edit] Integration by parts

$d (u v) = u d v + v d u$

$\int d(uv) = uv = \int u dv + \int v du$

$\int u dv = uv - \int v du$

I agree to multi-license all my contributions, with the exception of my user pages, as described below:

Multi-licensed into the public domain
I agree to multi-license my eligible text contributions, unless otherwise stated, under the GFDL and into the public domain. Please be aware that other contributors might not do the same, so if you want to use my contributions in the public domain, please check the multi-licensing guide.

Retrieved from "http://en.wikipedia.org../../../g/a/b/User%7EGabbe_a391.html"

User:Gabbe

From Wikipedia, the free encyclopedia

[edit] Playing with LaTeX:

[edit] Implicit differentiation

[edit] Integration by substitution

[edit] Integration by parts

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