مشتقات جزیی
type: Concept
preferred label: partial derivatives @en
related: چشمه (نور)

معادله پواسون
type: Concept
preferred label: Poisson equation @en
related: چشمه (نور)

تداخل سنج
type: Concept
preferred label: interferometer @en
related: چشمه (نور)

چشمه (نور)
type: Concept
broader: نور
preferred label: source (Optics) @en
related: تداخل سنج
related: معادله پواسون
related: مشتقات جزیی

نور
type: Concept
narrower: چشمه (نور)
preferred label: light @en