initial commit / add all books

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diff --git a/2863/CH2/EX2.29/ex2_29.sce b/2863/CH2/EX2.29/ex2_29.sce
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+//chapter 2

+//part a

+printf("\n");

+c=3*10^8;

+f=10^9;

+lamda=c/f;

+printf("the wavelength is %gm",lamda);

+//part b

+dl=3*10^-2;

+Rrad=80*(%pi)^2*(dl/lamda)^2;

+printf("\nthe radiation resistance is %gohm",Rrad);

+//part c

+Gdmax=1.5//Gd=1.5sin^2(theta),where theta=90 for short dipole

+n=0.6;

+Gp=n*Gdmax;

+printf("\nthe antenna gain is given by %g",Gp);

+//part d

+Ae=1.5*(lamda)^2/(4*(%pi));

+printf("\nthe effective aperture is %gm^2",Ae);