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+//Caption:Program to calculate how many bits per sample can be saved by using DPCM
+ 
+//Example 3.4
+ 
+//Page 128
+ 
+w=800//Omega=800Hz
+ 
+//x(t)=A sin(2pi.wt), equation for sine wave with maximum amplitude
+ 
+//x'(t)=A(2pi).w.cos(2pi.wt), diff w.r.t time
+ 
+(2*%pi)*800*(1/8000)
+ 
+//0.62831*a, x'(t)max
+ 
+disp('savings in the bits per sample can be determined as ')
+ 
+log2(1/0.628)
+  
+//Result
+ 
+//0.67 bits
+\ No newline at end of file