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+//Chapter 7, Example 7.7, Page 209
+clc
+clear
+// Range in water
+x = poly([-2.5839, 1.3767, 0.20954],'x','c')
+r = log10(2)
+pow = horner(x,r)
+Rp = 10**pow
+RT = 3*Rp
+printf("Rp = %f cm\n",Rp)
+printf("RT = %f cm\n",RT)
+//Answers may vary due to round off error