//Chapter-3,Example3_17_3,pg 3-36

E=1000                                  //electric field

P=4.3*10^-8                             //polarization

e0=8.854*10^-12                         //absolute permitivity

er=(P/(e0*E))+1                         //as P/E=e0(er-1)

printf("relative permittivity =")

disp(er)