User:Crasshopper

File:Crasshopper.jpg

I started editing Wikipedia in 2005 and average 100 edits/year.

I'm an American living in Indiana.

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I started or revived the following pages:

• Countersignaling
• Econophysics
• Dynamic stochastic economics
• Option pricing
• Non-wellfounded mereology

Wikipedia:Babel

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Other pages I started:

• John Challifour
• Max Zorn - not really but I contributed an interesting tidbit about his guitar-playing and once when he got hit by a bus.

Bookmarks

Unusual articles

The rest

My favorite number is $\sqrt{2}$.

Curriculum Vitæ

Equations

$\max \sum _{t=1}^{\mathrm{\infty }}{\delta }^t\cdot u(w_t)$

$L=\sum _{t=0}^{\mathrm{\infty }}\sum _{z^t}{\beta }^t\cdot U(c_t(z^t)\cdot {\pi }_t(z^t))+\sum _{t=0}^{\mathrm{\infty }}\sum _{z^t}{\lambda }_t{z}^t\cdot \{z^t\cdot f(k_t(z^{t-1}))+(1-\delta )\cdot k_t(z^{t-1})-c_t(z^t)+k_{t+1}(z^t)\}$

$\mathrm{\$}=\mathrm{w}\mathrm{a}\mathrm{g}\mathrm{e}\cdot (1-\mathrm{l}\mathrm{e}\mathrm{i}\mathrm{s}\mathrm{u}\mathrm{r}\mathrm{e}\mathrm{t}\mathrm{i}\mathrm{m}\mathrm{e})$

⋉ Rubik's Cube is ${\mathbb{\mathbb{Z}}}_3^7\times {\mathbb{\mathbb{Z}}}_2^{11}⋊((A_8\times A_{12})⋊{\mathbb{\mathbb{Z}}}_2)$

<img src="http://latex.codecogs.com/gif.latex?\large \dpi{120} \bg_white \Huge{\text{ Determinant }} \ \Normal{\det |\mathcal{M}|} \\ \\ |\mathcal{M}| \Large{\text{ is }} \left| \; \begin{pmatrix} &a \leadsto a &&& a \leadsto b& \\ \\ &b \leadsto a &&& b \leadsto b& \end{pmatrix} \; \right|" title="\large \dpi{120} \bg_white \Huge{\text{ Determinant }} \ \Normal{\det |\mathcal{M}|} \\ \\ |\mathcal{M}| \Large{\text{ is }} \left| \; \begin{pmatrix} &a \leadsto a &&& a \leadsto b& \\ \\ &b \leadsto a &&& b \leadsto b& \end{pmatrix} \; \right|" />

$\begin{array}{ccc}100{}^{\circ }\mathrm{F}& ⟶& 311\mathrm{K}\\ \\ & & \downarrow \\ \\ -180{}^{\circ }\mathrm{F}& ⟵& 155{}^1/{}_2\mathrm{K}\end{array}$

$\Vert \text{song}\Vert =\int \text{compression wave}$

$\gamma \stackrel{\mathrm{d}\mathrm{e}\mathrm{f}}{=}\frac{1}{\sqrt[2]{1-(\frac{v}{c}){}^2}}$

$x^{\prime }\leftarrow \gamma \cdot x+ı\gamma \cdot \frac{v}{c}\cdot t=\frac{x+{}^1/{}_4\circlearrowleft \cdot \mathrm{\%}\cdot t}{\mathrm{N}\mathrm{O}\mathrm{R}\mathrm{M}\mathrm{1}}$

$t^{\prime }\leftarrow \gamma \cdot t-ı\gamma \cdot \frac{v}{c}\cdot x=\frac{t+{}^1/{}_4\circlearrowright \cdot \mathrm{\%}\cdot t}{\mathrm{N}\mathrm{O}\mathrm{R}\mathrm{M}\mathrm{1}}$