## EnglishEdit

### NounEdit

**psi function** (*plural* **psi functions**)

- (mathematics) A function of a complex variable obtained by differentiating the logarithm of a gamma function; the digamma function
- (physics) The Schrödinger wave function

**psi function** (*plural* **psi functions**)

- (mathematics) A function of a complex variable obtained by differentiating the logarithm of a gamma function; the digamma function
- (physics) The Schrödinger wave function