The Optimization City group has been launched by the efforts of a number of students and graduates of Sharif University of Technology, Tehran, Iran under the supervision of Dr. Reza Mohammad Hasany to resolve the questions of students and researchers in the field of Operations Research (OR). Despite the existence of many books in this field, the lack of a complete online reference that, in addition to the simple and fluent expression of research topics in operations by solving numerous exercises, is completely felt.

The idea of designing a comprehensive reference in the field of operations research was in the mind of Dr. Reza Mohammad Hasany. He started the design of this website by setting the expert in the field of operations research, and after two years, this website was born in the form of the Optimization City. In this website, an effort has been made to provide the needs of students and researchers including course notes, training videos, reference books, optimization software, news, online calculator and solver.

Our audience is all researchers, professors, students and those who interested in the field of operations research. The following are the unique features of this website:

• Teaching OR topics in the form of course notes
• Teaching OR topics in the form of videos
• Teaching how to writing the computer code in the commercial optimization software
• Free and unlimited online solver for OR problems
• Free and unlimited online calculator of statistical test
• Free and unlimited online calculator of engineering economics factors
• Teaching the application of commercial optimization software
• Presenting the ability of commercial optimization software
• Presenting the online library of valuable OR books
• Introducing top journals in the field of OR
• Consulting and engineering OR projects