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+//Variable declaration:
+//From example 17.10:
+Qf = 64                     //Fin heat transfer rate (W)
+Q1 = 1.48                   //Total heat transfer rate without the fin (W)
+
+//Calculation:
+E = Qf/Q1                   //Fin effectiveness
+
+//Result:
+printf("The fin effectiveness is : %.1f",E)
+if E>2 then
+    printf("Hence, the use of the fin is justified.")
+end