Symbols:Greek/Psi
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Psi
The $23$rd letter of the Greek alphabet.
- Minuscule: $\psi$
- Majuscule: $\Psi$
The $\LaTeX$ code for \(\psi\) is \psi .
The $\LaTeX$ code for \(\Psi\) is \Psi .
Mapping
- $\map \psi x$
The Greek letter $\psi$, along with $\phi$ and $\chi$ and others, is often used to denote a general mapping.
In the context of abstract algebra, it often denotes a homomorphism.
The $\LaTeX$ code for \(\map \psi x\) is \map \psi x .