Symbol in context

$\psi$

This entry links every published equation using this exact notation. Its meaning may change between equations.

Meanings in context

Article-grounded definition

Symbol psi

a learned function.

Read equation 9 in How AI for Science and Medicine Actually Works →

Article-grounded definition

Symbol psi

the stream function describing the horizontal flow.

Read equation 1 in From Origins to Frontier: A History of Mathematics, Proof, and Scientific Computation →

Used in 11 equations

h_v^{(k+1)} = \phi\left(h_v^{(k)}, \bigoplus_{u \in \mathcal{N}(v)} \psi\left(h_v^{(k)}, h_u^{(k)}, e_{uv}\right)\right),

How AI for Science and Medicine Actually Works · Equation 9

This equation states an equality: the expressions on both sides have the same value under the article’s assumptions.

Equation guide → · This term → · Article →

\psi

How AI for Science and Medicine Actually Works · Equation 15

a learned function.

Equation guide → · This term → · Article →

\lvert\psi\rangle

A Horizon Is a Toll Booth, Not a Loophole · Equation 8

This mathematical expression combines the displayed quantities; its precise role follows from the surrounding article text.

Equation guide → · This term → · Article →

\frac{\partial \zeta}{\partial t} + J(\psi, \zeta) = 0, \qquad \zeta = \nabla^2 \psi,

From Origins to Frontier: A History of Mathematics, Proof, and Scientific Computation · Equation 1

This equation states an equality: the expressions on both sides have the same value under the article’s assumptions.

Equation guide → · This term → · Article →

\psi

From Origins to Frontier: A History of Mathematics, Proof, and Scientific Computation · Equation 2

the stream function describing the horizontal flow.

Equation guide → · This term → · Article →

J(\psi,\zeta)

From Origins to Frontier: A History of Mathematics, Proof, and Scientific Computation · Equation 4

This mathematical expression combines the displayed quantities; its precise role follows from the surrounding article text.

Equation guide → · This term → · Article →

P(a) = |\langle a \mid \psi \rangle|^2

Comparing the Main Approaches to Quantum Foundations and Measurement · Equation 1

This equation states an equality: the expressions on both sides have the same value under the article’s assumptions.

Equation guide → · This term → · Article →

|\psi\rangle

Comparing the Main Approaches to Quantum Foundations and Measurement · Equation 2

This mathematical expression combines the displayed quantities; its precise role follows from the surrounding article text.

Equation guide → · This term → · Article →

E(\theta) = \langle \psi(\theta) \mid H \mid \psi(\theta) \rangle .

Variational Evolution: How Quantum Computers Learn Their Answers · Equation 2

This equation states an equality: the expressions on both sides have the same value under the article’s assumptions.

Equation guide → · This term → · Article →

U\left(|\psi\rangle \otimes |0\rangle\right) = |\psi\rangle \otimes |\psi\rangle ,

Error Correction Is the Whole Problem in Quantum Computing · Equation 1

This equation states an equality: the expressions on both sides have the same value under the article’s assumptions.

Equation guide → · This term → · Article →

|\psi\rangle

Error Correction Is the Whole Problem in Quantum Computing · Equation 2

This mathematical expression combines the displayed quantities; its precise role follows from the surrounding article text.

Equation guide → · This term → · Article →

ψ\psiψ

Meanings in context

Symbol psi

Symbol psi

Used in 11 equations

$\psi$