 ##  [Orthogonality](/orthogonality) 

  ##  [Orthogonality](https://natural.quantumdictionary.io/orthogonality-0) 

  
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**Natural &amp; Formal Sciences Dictionary**

 
Definition

A relation between vectors (or functions) indicating that their inner product is zero; geometrically: perpendicular directions; statistically: lack of linear correlation with respect to the chosen inner product.

 
 ##  [Orthogonality](https://mathlogic.quantumdictionary.io/orthogonality-1) 

  
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- Natural &amp; Formal Sciences -

**Mathematics &amp; Logic Dictionary**

 
Definition

A relation between two elements of an inner-product space (vectors, functions, etc.) that holds when their inner product equals zero; geometrically it generalizes perpendicularity to the chosen inner-product geometry.