{"version":"1.0","type":"link","title":"Subderivative - Newikis","description":"In mathematics, the subderivative (or subgradient) generalizes the derivative to convex functions which are not necessarily differentiable. The set of subderivatives at a point is called the subdifferential at that point. Subderivatives arise in convex analysis, the study of convex functions, often…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400,"thumbnail_url":"https://upload.wikimedia.org/wikipedia/commons/4/4e/Subderivative_illustration.png","thumbnail_width":540,"thumbnail_height":463}