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+// Scilab Code Ex7.4: Page-377 (2008)

+clc; clear;

+function p = find_cell_type(x)

+    if x == 1 then

+        p = 'simple cubic';

+    end    

+    if x == 2 then

+        p = 'body centered';

+    end    

+    if x == 4 then 

+        p = 'face centered';        

+    end

+endfunction

+M = 130;    // Gram atomic weight of Cs, g/mole

+N = 6.023e+023;    // Avogadro's number

+rho = 2;    // Density of Cs, g/cc

+a = 6e-008;    // Distance between two adjacent atoms in the Cs, cm

+m = M/N;    // Mass of each Cs atom, g

+x = rho*a^3*N/M;    // Number of Cs atoms in cubic unit cell

+c_type = find_cell_type(int(x));    // Call function to determine the type of cell

+printf("\nThe cubic unit cell of Cs is %s.", c_type);

+

+// Result

+// The cubic unit cell of Cs is body centered. 
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