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diff --git a/1553/CH23/EX23.9/23Ex9.sce b/1553/CH23/EX23.9/23Ex9.sce
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+//chapter 23 Ex 9
+
+clc;
+clear;
+close;
+//(i)
+n1=25
+ans1=log10(n1);
+mprintf("The value of log %d is %.3f",n1,ans1);
+
+//(ii)
+n2=4.5
+ans2=log10(n2);
+mprintf("The value of log %d is %.3f",n2,ans2);