Muhammad Baqir Yazdi was an Iranian

mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, structure, space, models, and change. History On ...

who lived in the 16th century. He gave the pair of

amicable numbers Amicable numbers are two different natural numbers related in such a way that the sum of the proper divisors of each is equal to the other number. That is, σ(''a'')=''b'' and σ(''b'')=''a'', where σ(''n'') is equal to the sum of positive di ...

9,363,584 and 9,437,056 many years before Euler's contribution to amicable numbers. He was the last notable

Islamic mathematician Mathematics during the Golden Age of Islam, especially during the 9th and 10th centuries, was built on Greek mathematics (Euclid, Archimedes, Apollonius) and Indian mathematics (Aryabhata, Brahmagupta). Important progress was made, such as fu ...

. His major book is ''Oyoun Alhesab'' (Arabic:عيون الحساب).

References

16th-century Iranian mathematicians Year of birth unknown Year of death unknown {{Asia-mathematician-stub