Ahmed ibn Yusuf was 65 this year and would die in a further 12 years.
Thabit was 64 this year and would die the following year.
Sankara Narayana was about 60 this year and died about this year.
Abu Kamil Shuja was about 50 this year and would die in about a further 30 years.
Al-Battani was about 32 this year and would die in about a further 29 years.
Sridhara was about 30 this year and would die in about a further 30 years.
Al-Nayrizi was about 25 this year and would die in about a further 40 years.
Sinan ibn Thabit ibn Qurra was about 20 this year and would die in about a further 43 years.
al-Khazin was born about this year and would die in about a further 71 years.

There were 9 mathematicians in our archive alive in the year 900.

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