what is the div operator of matlab?how it works?

    curvature=div(Nx,Ny);
I want to kown how div works ,but doc div can;t be found the reference

Answer 1

[the cyclist]

doc divergence

or

http://www.mathworks.com/help/matlab/ref/divergence.html

or possibly

doc div

or

http://www.mathworks.com/help/symbolic/mupad_ref/div.html

depending on which function your really mean.