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+
+//example 3-3 in page 41
+clc;
+//Given Data
+A=['a' 'b' 'c'];
+m=0;
+Rm=99;//coil resistance in ohm
+IM=0.1e-3;//FSD(IM)=0.1 mA
+Rs=1;//shunt resistance in ohm
+//calculation
+n=2;//initialisation
+while n>0.25,
+    n=n/2;
+    Im=IM*n;
+    Vm=Im*Rm;// Meter voltage in volts
+    Is=Vm/Rs;//current throught the shunt resistance in ampere
+    I=Im+Is;//toatal current through the ammeter I=Im+Is in ampere
+    m=m+1;
+    printf("(%c) current through the ammeter at %.2f FSD=%.1f mA\n",A(m),n,I*1000);
+end