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path: root/2594/CH1/EX1.20/Ex1_20.sce
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clc
a=4.75*10^-8
disp(" a = "+string(a)+"cm") //initializing value of lattice constant.
N=4
disp(" N = "+string(N)) //initializing value of number of atoms in the unit cell.
na =(N/(a^3))
disp(" na =(N/(a^3)) = "+string(na))//calculation