User:KNAnagnostopoulos/sandbox

This is a test page for practice for myself. It contains notes for things that I need to do more often when editing. Test again in visual editing.

Insert a reference by doi (click "Cite" in visual editor) or ISBN or by URL. Θ (using symbol list) Θ (the utf8 character)

Help on editing math, found here: Help:Displaying a formula.

x(t) = sin(ω1 t)

$$ x(t) = \sin\left(\omega_1 t\right) $$

For inline display use display="inline" $ A_\mu$.

$$Z=\int {\cal D} A {\cal D}\bar\psi {\cal D} \psi\, {\rm e}^{-S[A,\bar\psi,\psi]}$$

$$\langle {\cal O} \rangle = \frac{\int {\cal D} A {\cal D}\bar\psi {\cal D} \psi\, {\rm e}^{-S[A,\bar\psi,\psi]}\, {\cal O}[A,\bar\psi,\psi]} {\int {\cal D} A {\cal D}\bar\psi {\cal D} \psi\, {\rm e}^{-S[A,\bar\psi,\psi]}} $$

Numbering equations:

As seen in equation ($$), blah blah blah...

Display as a block: $$\text{geometric series:}\quad \sum_{i=0}^\infty 2^{-i}=2 $$

Colors and text:

$$ {\color{Blue}x^2}+{\color{Orange}2x}-{\color{LimeGreen}1}\quad \text{is a second} \mbox{ order polynomial} $$

Multiple equations:

$$\begin{align} u & = \tfrac{1}{\sqrt{2}}(x+y) \qquad & x &= \tfrac{1}{\sqrt{2}}(u+v) \\ v & = \tfrac{1}{\sqrt{2}}(x-y) \qquad & y &= \tfrac{1}{\sqrt{2}}(u-v) \end{align}$$

Matrix \begin{pmatrix}: $$ \begin{pmatrix} x & y \\ z & v \end{pmatrix} $$ Environments: matrix     (plain), vmatrix (|a|), Vmatrix     ($\begin{Vmatrix}a\end{Vmatrix}$ ), bmatrix     ($\begin{bmatrix}a\end{bmatrix}$ ), Bmatrix     ($\begin{Bmatrix}a\end{Bmatrix}$ ), smallmatrix ($\begin{smallmatrix}a\end{smallmatrix}$ )

Cases: $$ p(x) = \begin{cases} 3x + 5y + z \\ 7x - 2y + 4z \\ -6x + 3y + 2z \end{cases} $$

See source editor on how to insert reference list. Look also at Template:Reflist and Template:Reflist