Tag: Al-kashi

The Orbital Elements of Venus in Medieval Islamic Astronomy: Interaction Between Traditions and the Accuracy of Observations

by S. Mohammad Mozaffari Published on: 23rd November 2020

The orbital elements of each planet are the eccentricity and the direction of the apsidal line of its orbit defined by the ecliptic longitude of either of its apses, i.e., the two points on its…

Biruni’s Telescopic-Shape Instrument for Observing the Lunar Crescent

by S. Mohammad Mozaffari Published on: 17th October 2020

This paper deals with an optical aid named barbakh that Abū al-Rayḥān al-Bīrūnī (973–1048 CE) proposes for facilitating the observation of the lunar crescent in his al-Qānūn al-Mas‘ūdī VIII.14. The device consists of a long…

The Role of Mathematics and Geometry in Formation of Persian Architecture

by Ahad Nejad Ebrahimi Published on: 13th August 2020

Geometry is one of the main features in the formation of Persian architecture. Research in Persian architecture geometry is impossible without familiarity with geometry. This research tries to demonstrate the relationship between the progress of…


World Math Days and Month

by Cem Nizamoglu Published on: 12th March 2016

As the world celebrates World Maths and Pi Day on March 12th and March 14th, April is also Mathematics and Statistics Awareness Month. To celebrate these special occasions, the Muslim Heritage website would like to…


Significant Ottoman Mathematicians and their Works

by Salim Ayduz Published on: 19th December 2011

This article aims to give an overview of the formation and development of mathematical studies and the work of famous mathematician in the Ottoman State over a 600 year period, from the period preceding the…


The Volume of the Sphere in Arabic Mathematics: Historical and Analytical Survey

by Mustafa Mawaldi Published on: 6th April 2009

The following article focuses on the cubic measure of the volume of the sphere in Arabic mathematics. After a short presentation of the Greek and Chinese ancient legacies on this topic, the article surveys thoroughly…


Glimpses in the History of a Great Number: Pi in Arabic Mathematics

by Moustafa Mawaldi Published on: 22nd September 2008

The Greek letter pi (symbolized by π) is defined as the ratio of the circumference of the circle to its diameter. It is considered to be a vital element in the calculations of the area…

Taqi al-Din Ibn Ma’ruf: Survey on his Works and Scientific Method

by Ihsan Fazlioglu Published on: 4th July 2008

Being in form a bio-bibliographical essay on the life and works of Taqī al-Dīn Ibn Ma'rūf, a well known scholar of 16th-century Istanbul, this article presents the contents of his books and compares his scientific…


The Scholars of Samarkand

by Salah Zaimeche Published on: 2nd March 2005

Samarkand contributed in particular to the progress of science in astronomy through its observatory. Some of its directors and their achievements are highlighted here.