Try doing algebra some time, and math without arabic numerals.
There is no such thing as "arabic numerals."
There are, however, Hindu numerals, adopted by Arabs and others.
And algebra is not Arabic, but a Persian systematization of Indian mathematics.
“Try doing algebra some time, and math without arabic numerals”
You mean the symbols that the arabs call Hindu numerals?
http://en.wikipedia.org/wiki/Arabic_numerals
Which the Muslim conquerers of India got from Indian mathematicians, then re-labeled as their own
Diophantus of Egypt is credited as the "father of Algebra" (400 years before Mohammed), and Algebra was developed gradually over centuries from China to India to Persia. Arabic numerals predated Islam. That is the point. Arab culture produced much, but post-Islamic conquest, those developments declined rapidly.
Neither of which are Islamacists' inventions. You can thank the Indians for both.