EKFn

Could you specify the domain or context for EKFn? The acronym can refer to multiple topics across different fields (for example, mathematics, biology, technology, or organizations), and providing a precise wiki-style article would require knowing which EKFn you have in mind. If you’d like, I can produce a neutral, disambiguation-style overview that surveys common uses of EKFn in various domains, or create a fictional, generic encyclopedia entry for a hypothetical EKFn concept, kept concise (under 300 words).