Gradient in

mathematical analysis - differential operato r, which assigns skalarnemu field vector field. Word vector field has a direction and sense of a vector function of the highest gr owth at a given point, and the value is proportional to the growt h rate (growth per unit length) function. Opposite gradient vector is called antygradientem. Gradient is determined by the hail or the nabla symbol, which is reversed by the Greek letter delta. Intuitively, the gradient is a vector, which indicates the direction of return on the fastest growth of functions, and the length of this function corresponds to the increase per unit length.