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diff --git a/3760/CH7/EX7.2/Ex7_2.sce b/3760/CH7/EX7.2/Ex7_2.sce
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+clc;
+p=4; // number of poles
+c=12; // number of coils
+// Number of commutator segments is equal to number of coils=12
+// Each coil has two coil side therefore total coil sides are 24
+s=(2*c)/2 ; // total number of slots required
+k=1; // integer added(or subtracted) to calculate back pitch to make it an odd integer
+w=2; // winding pitch 
+yb1=((2*c)/p)-k; // back pitch
+// or
+yb2=((2*c)/p)+k; // back pitch
+disp('Back pitch is ');
+disp(yb1,'or',yb2);
+yf1=yb1-2; // front pitch for yb=5
+yf2=yb2-2; // front pitch for yb=7
+disp('front pitch for progressive winding is ');
+disp(yf1,'or',yf2);
+disp('It is desirable that (yb+yf)/2 should be equal to pole pitch that is 6(in terms of coil sides per pole). So choose yb=7 and yf=5');
+disp('Commutator pitch for progressive lap winding is');
+disp(1);