Curl of a vector field (ex. no.1): Vector Calculus

Free ebook http://tinyurl.com/EngMathYT
I present and solve a simple example where the curl of a given vector field is sought. The curl is one of the basic operations of “vector calculus”.
Such and example is seen in 2nd year university mathematics.
Such an example is seen in 2nd year university mathematics courses.

Questions?