Thread: The dual nature of Nabla ? View Single Post
 Sci Advisor HW Helper Thanks P: 26,167 hi abrowaqas! ∇ behaves just like an ordinary vector … the vector itself is ∇f (where f is a scalar)and you can dot-product it, or cross-product it, with a vector A … ∇.A (divA) or ∇xA (curlA)