Abu Bakr al-Hassar’s biography, fact, career, awards, net worth and life story

Intro Moroccan mathematician
Is Mathematician
From Morocco
Type Mathematics
Gender male

Al-Hassar or Abu Bakr Muhammad ibn Abdallah ibn Ayyash al-Hassar (Arabic: أبو بكر محمد ابن عياش الحصَار‎)was a Muslim mathematician from Morocco, living in the 12th century. He is the author of two books Kitab al-bayan wat-tadhkar (Book of Demonstration and Memorization), a manual of calculation and Kitab al-kamil fi sinaat al-adad (Complete Book on the Art of Numbers), on the breakdown of numbers. The first book is lost and only a part of the second book remains.

Al-Hassar developed the modern symbolic mathematical notation for fractions, where the numerator and denominator are separated by a horizontal bar. This same fractional notation appeared soon after in the work of Fibonacci in the 13th century.

You May Also Like

Maya Rudolph’s biography, fact, career, awards, net worth & life story

American actress, comedienne, and singer, Maya Khabira Rudolph has an estimated net worth of $10 million. A veteran of Los Angeles’ famed Groundlings comedy troupe who found fame as a key cast member of Saturday Night Live.  She is the daughter of late R&B and soul singer Minnie Riperton and music producer Richard Rudolph. Her father is Ashkenazi Jewish and her mother was African-American. She lost her mother to breast cancer at the tender age of six. Her father raised both her and her older brother, Marc, as a single parent. Her paternal grandfather was Sidney Rudolph, a philanthropist who once owned all of the Wendy’s and Rudy’s restaurants in Dade County, Florida.
Read More