Contributions Of Muslim Scientists Omar Al Khayam:

He was an outstanding Mathematician and Astronomer. He was also known as a poet, philosopher and a physician. He travelled to the great centers of learning of the era i.e. Samrakund, Bukhara, and Ispahan.He classified many algebraic equations based on their complexity and recognized thirteen different forms of cubic equation. He also classified algebraic theories of parallel lines. On the invitation of Sultan Jalal-ud- Din, he introduced the Jilali calendar which has an error of one day in 3770 years. He also developed accurate methods for determination of gravity as a poet too, he is known for his Rubaiyat.He made great contributions in the development of mathematics and analytical geometry which benefitted Europe several years later.