Characterization of some special surface

This study consists of five chapters. The first part is the introduction part and the usage areas of the ruled surfaces and the current research in these fields are explained. It is also emphasized how important are these researches on engineering, in particular, the importance of the technique using in the computer aided design is also stated. In the second part, the current literature is given.In the third part, basic definitions and theorems are given. In the fourth section, some characterizations of the ruled surface are investigated and the condition of being developable surface are indicated. The figure is illustrated via the example. In the fifth section, the consequence of the study is given.