DEL OPERATOR
Vector differential operator `del’ is represented by a symbol 
. Its another name is `nabla’. For three dimensional case, it is defined as
= id/dx + jd/dy + kd/dz
where I, j, k are unit vectors in the directions of co-ordinate axis X, Y and Z respectively.
Del is operated in three ways viz, gradient, divergence and curl, which we will discuss in next three sections.
GRADIENT OF A SCALAR Continue reading “Del operator and gradient”