Question

operation of vector differention operator​

Answer 1

Answer:

Direct speech describes when something is being repeated exactly as it was – usually in between a pair of inverted commas. ... Indirect speech will still share the same information – but instead of expressing someone's comments or speech by directly repeating them, it involves reporting or describing what was said.

Answer 2

Answer:

Del, or nabla, is an operator used in mathematics, in particular in vector calculus, as a vector differential operator, usually represented by the nabla symbol ∇. When applied to a function defined on a one-dimensional domain, it denotes its standard derivative as defined in calculus.