//Example 22_6
clc();
clear;
//To draw a ray diagram to locate the image
printf("From the diagram we notice that eyes will assume that the three rays come from image position indicated and as we see the image is virtual, erect and enlarged")
d1=10    //units in cm
d2=5     //units in cm
i=(d1*d2)/(d2-d1)   //Units in cm
printf("\nThe image is located at i=%.2f cm",i)