initial commit / add all books

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+//Caption:Calculate (i)-guide wavelength,(ii)-phase constant,(iii)-phase velocity for dominant mode

+//Exa:4.14

+clc;

+clear;

+close;

+c=3*10^10;//in cm/s

+a=5;//in cm

+b=2.5;//in cm

+wl_o=4.5;//in cm

+//For TE10 mode:

+wl_c=2*a;

+wl_g=wl_o/sqrt(1-(wl_o/wl_c)^2);

+V_p=c/sqrt(1-(wl_o/wl_c)^2);

+w=2*%pi*c/wl_o;

+w_c=2*%pi*c/wl_c;

+b=sqrt(w^2-w_c^2)/c;

+disp(wl_g,'Guide wavelength (in cm) =');

+disp(b,'Phase constant =');

+disp(V_p,'Phase velocity (in cm/s) =');

+

+//answer in book is wrongly written as guide wavelength =7.803 cm

+//answer in book is wrongly written as Phase velocity = 5.22*10^10 cm/s