Multivariable Calculus 10 | Directional Derivative [dark version]

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This video is about the definition of the directional derivative. It can be calculated with the help of the gradient.

#MultivariableCalculus
#Analysis
#Integral
#Calculus
#Derivatives
#Mathematicspdt
#Lagrange

(This explanation fits to lectures for students in their first year of study: Mathematics for physicists, Mathematics for the natural science, Mathematics for engineers and so on)