Question: Show that the ith partial derivative of the function f: n at some point x0 corresponds to the directional derivative of f at x0 in

Show that the ith partial derivative of the function f: „œn †’ „œ at some point x0 corresponds to the directional derivative of f at x0 in the direction ei, where
ei = (0, 0, . . . , 1, . . . , 0)
is the i unit vector. That is,

Dfx] = D f[x]

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