Del, also known as alted or nabla, is the vector operator Δ, expressed in Cartesian coordinates as
The product of Δ and a scalar S yields a vector field called grad S (the gradient of S):
The scalar product of Δ with a vector V is the divergence of V (div); the vector product of Δ with V is the curl of V.
Related categories ALGEBRA
SYMBOLS AND NOTATION
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