FRACTAL BASICS B   The density ro, intensity Er and potential Vr of physical field for different values of euclidean and fractal dimensions in distance:   r = 0.5 r = 1 r = 2 Programming code at Maple for calculation of quantities > restart: > with(linalg): > ED:=3; > FD:=2; > X:=vector(ED): > r:=sqrt(multiply(X,X)): > V:=-k*e*K*r^(FD-ED+2)/(FD*(FD-ED+2)): > 'V'=subs(r^2=R^2,V); > EV:=-grad(V,X): > E:=simplify(sqrt(multiply(EV,EV))): > 'E'=subs(r^2=R^2,E); > ro:=-simplify(laplacian(V,X)/k): > 'ro'=subs(r^2=R^2,ro);