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+clc 
+// Given that
+n=0.5//exponent that depends on tool and workpiece material
+C=400//constant
+
+// Sample Problem on page no. 555
+
+printf("\n # Increasing tool life by Reducing the Cutting Speed # \n")
+
+V1=poly(0,"V1")
+r=0.5// it is the ratio of V2/V1 where V1 and V2 are the initial and final cutting speed of the tool
+//let t=T2/T1 where T1 and T2 are the initial and final tool life
+t=1/(r^(1/n))//from the relation V1*(T1^n)=V2*(T2^n)
+P=(t-1)*100
+printf("\n\n Percent increase in tool life  =%d Percent",P)
+
+