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authorprashantsinalkar2017-10-10 12:27:19 +0530
committerprashantsinalkar2017-10-10 12:27:19 +0530
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+//Example 23_1
+clc();
+clear;
+//To find the focal length of the reading glasses
+d1=25 //units in cm
+d2=-75 //units in cm
+f=(d1*d2)/(d2+d1) //Units in cm
+printf("The focal length of the reading glasses is f=%.2f cm",f)