{tag=Chomsky hierarchy}
{wiki}

There is a <Turing machine> that halts for every member of the language with the answer yes, but does not necessarily halt for non-members.

Non-examples: https://cs.stackexchange.com/questions/52503/non-recursively-enumerable-languages


Recursively enumerable language

Riemann zeta function

Age of Enlightenment

Cross product

{wiki}

= Rho-independent termination
{synonym}
{title2}


Intrinsic termination

Kin punishment

List of proteins

Matrix

Projection

Projection (mathematics)

{c}
{title2=scid}
{wiki}

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

Electromagnetic coil

History of England

Linear algebra bibliography

MIT License

{wiki}

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>.}


Ciro Santilli @cirosantilli 37