Revision as of 17:37, 6 January 2010

Definitions

Electric	Magnetic
$V = \int \vec{E} \cdot \vec{d l}$	$\vec{F} = \int \vec{H} \cdot \vec{d l}$
$\sum_{n} V_{n} = 0 = \oint \vec{E} \cdot \vec{d l}$ Kirchoff's voltage law	$\oint \vec{H} \cdot \vec{d l} = N \cdot i = \sum_{n} H \cdot l + N \cdot i = 0$
$\sum_{n} I_{n} = 0 = \oint_{S} \vec{J} \cdot \vec{d S}$ Kirchoff's current law	$\oint \vec{B} \cdot \vec{d S} = 0$ The B-field has to go around in a loop
$\oint \vec{J} \cdot \vec{d S} = I$	$\int \vec{B} \cdot \vec{d S} = \overset{p h i}{\overset{⏞}{Φ}}$ Magnetic flux
$R = \frac{V}{I}$	$\overset{r e l u c t a n c e}{\overset{⏞}{R}} = \frac{F}{Φ} = \frac{N \cdot i}{Φ}$
$I = \frac{V}{R} = G \cdot V$ or $\vec{J} = σ \cdot \vec{E}$	$\vec{B} = μ \cdot H$ assumed linearity (though it's not always the case - think hysteresis loop

Feature	Syntax	How it looks rendered
Bad	`( \frac{1}{2} )`	$(\frac{1}{2})$
Good	`\left ( \frac{1}{2} \right )`	$(\frac{1}{2})$

@@ Line 1: / Line 1: @@
 =Definitions=
-{|border="1"
+{|class="wikitable"
 | Symbol || Units || Name
 |-
@@ Line 29: / Line 29: @@
 |-
 | <math> I = \frac{V}{R} = G \cdot V </math> or <math>\overrightarrow{J} = \sigma \cdot \overrightarrow{E}</math> || <math>\overrightarrow{B} = \mu \cdot H </math> assumed linearity (though it's not always the case - think hysteresis loop
+|}
+=== Parenthesizing big expressions, brackets, bars ===
+{| class="wikitable"
+! Feature !! Syntax !! How it looks rendered
+|-
+| Bad
+| <code>( \frac{1}{2} )</code>
+| <math>( \frac{1}{2} )</math>
+|-
+| Good
+| <code>\left ( \frac{1}{2} \right )</code>
+| <math>\left ( \frac{1}{2} \right )</math>
 |}