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diff --git a/911/CH1/EX1.11/ex_1_11.sce b/911/CH1/EX1.11/ex_1_11.sce
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+//example 1.11//
+clc
+//clears the screen//
+clear
+//clears all existing variables//
+a=-142;
+//given number//
+b=a*-1;
+c=dec2bin(b);
+//converting it to binary number//
+c1=10001110;
+d=c1/(10000000);
+m=(d-1)*(10^23);
+//mantissa//
+e=dec2bin(7,8)
+//exponent//
+f=bin2dec('01111111')
+g=7+f;
+be=dec2bin(g)
+//biased exponent//
+be2=10000110
+be1=be2*(10^23);
+s=1*(10^31);
+n=s+be1+m;
+//result//
+disp('Thus -142 = ')
+disp(n);
+\ No newline at end of file