Matrix

Projection

Projection (mathematics)

{c}
{title2=scid}
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Advanced. Not beginner friendly, very clunky.


Shane's Chess Information Database

https://austen.uk/courses/tqm/elastic-chain/#complex-coordinates


Complex Coordinates

Theories of Quantum Matter by Austen Lamacraft <span class="meta">/</span> The Elastic Chain <span class="meta">/</span> Complex Coordinates

Vector space

Electromagnetic coil

History of England

Linear algebra bibliography

MIT License

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One dimension in <position representation>:
$$
\hat{p} = - i \hbar \pdv{}{x}
$$

In three dimensions In position representation, we define it by using the <gradient>, and so we see that 
$$
\hat{p} = - i \hbar \pdv{}{x}
$$

\Video[https://www.youtube.com/watch?v=Egu4i8umpoM]
{title=Position and Momentum from Wavefunctions by <Faculty of Khan> (2018)}
{description=Proves in detail why the <momentum operator> is $\pdv{}{x}$. The starting point is determining the time <derivative> of the <expectation value> of the <position operator>.}


Momentum operator

Name

Organism

Photomultiplier

Popular science publication

Proprietary software

Regions of England

Sedimentary rock

{tag=Era}
{title2=65 Bya - today}
{title2=new life}
{title2=K-Pg Extinction - today}
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Cenozoic

Country in West Asia

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<sphere> with two <Möbius strips> stuck into it as per the <classification of closed surfaces>.


Klein bottle

Ciro Santilli @cirosantilli 35