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+//CHAPTER 1 ILLUSRTATION 3 PAGE NO 16
+//TITLE:Basic kinematics
+//Figure 1.16
+clc
+clear
+OB=54.6//               distance between the fixed centres in mm
+OA=85//                 length of driving crank in mm
+OA2=OA
+CA=160//                length of slotted lever in mm
+CD=144//                length of connectin rod in mm
+//================================
+beeta=2*(acosd(OB/OA2))//        angle through which crank turns inreturn stroke in degrees
+A=(360-beeta)/beeta//             ratio of time of cutting stroke to the time of return stroke 
+printf('Ratio of time taken on the cutting to the return stroke= %.0f',A)