Gradient Existence in R2Explores the existence of the gradient in R2 and its implications on derivability and directional derivatives.
Directional DerivativesExplores directional derivatives, showcasing scenarios where they exist but the function is not differentiable.
Differentiability AnalysisExplores differentiability, partial derivatives, Schwarz's theorem, and function continuity in mathematical analysis.
Directional DerivativesExplores directional derivatives, their calculation, examples, and cases of lack of continuity.