GAZI UNIVERSITY JOURNAL OF SCIENCE, cilt.31, sa.1, ss.202-211, 2018 (ESCI)
It is well known that a characteristic property of the Bertrand curve is the existence of a linear relation between its curvature and torsion. In this paper, we propose a new method for generating Bertrand curves, which avoids the basic restrictions. Our main result is that every space curve is a directional Bertrand curve.