function E = electric(t,y)
% ELECTRIC Calculates electric field E(t,y)
% Input values are scalar time t and vector y(6)= (x,y,z,vx,vy,vz)
% Output values are column vector E(3)=(Ex,Ey,Ez)
%

E=zeros(3,1);
% Electric and Magnetic Fields
E(1)=0. ;
E(2)=0.;
E(3)=0. ;