单词	gradient
释义	gradient (grad) The vector obtained by applying the differential operator del, , to a scalar function of position ϕ(r). This gives the gradient of ϕ as grad The gradient of ϕ points in the direction in which ϕ is increasing fastest. See also curl, divergence.
随便看	differentiation under the integral sign diffusion equation digit digital digital computer digital data digital root digraph dihedral dihedral group Dijkstra's method dilation dimension dimension dimensions Diophantine equation Diophantus of Alexandria Dirac delta function Dirac, Paul Adrien Maurice directed graph directed line directed line segment directed number direction directional data

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