Contemporary Wisdom, Institute for Humanities and Cultural Studies (IHCS) Biannual Journal, Vol.12, No.1, Spring and Summer 2021, 269-309 The Place of Theoretical Wisdom in the Application of Architectural Geometry by Islamic Mathematicians The Period under Study of the Fourth to Eleventh Centuries AH Ahad Nejad Ebrahimi * Minou GharehBaglou ** , Amir Hosein Frashchian *** Abstract In Islamic architecture, the architect must be face all the issues in architectural design. Create quantitative & qualitative issues by observing the principles & rules of the process. The architect must create the architectural structure with geometry through art & based on theoretical reason. Architecture has numerical & theoretical dimensions, because it is for the human being as a thinking being, it has qualitative dimensions. The architect must pay attention to the quantitative & qualitative dimensions in creating the architectural building. Traditional Iranian architecture has quality dimensions that include the wisdom of philosophers & Islamic thinkers of Iran. These topics are combined with the basics of other topics to work. Islamic architecture is called Islamic because it combines with the principles of Islamic wisdom & philosophy in uses it. In order to underst& Islamic architecture, wisdom must be examined in the process of creating an architectural building. The truth of the function of wisdom in the process of creating an architectural structure is an important issue. Wisdom in the science of architectural geometry can mean Coded truths that include the Coded structure of architecture. The Coded truths in Islamic philosophy are * Associate Professor of Architecture, Tabriz Islamic Art University, Tabriz, Iran (Corresponding Authour), Ahadebrahimi@Tabriziau.ac.ir ** Associate Professor of Architecture, Tabriz Islamic Art University, Tabriz, Iran, M.gharehbaglou@Tabriziau.ac.ir *** PhD student in Islamic architecture, Tabriz Islamic Art University, Tabriz, Iran, Amirhoseinfarshchian@Tabriziau.ac.ir Date received: 14/03/2021, Date of acceptance: 23/05/2021 Copyright © 2018, This is an Open Access article. This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.