Coba jelasin Ghiyath al-Kashi dari Matematik pada zaman pertengahan Islam dalam bahasa melayu dong

Persian mathematician Ghiyath al-Kashi (1380-1429) contributed to the development of decimal fractions not only for approximating algebraic numbers, but also for real numbers such as π, which he computed to 16 decimal place of accuracy. His contribution to decimal fractions is so major that for many years he was considered as their inventor. Kashi also developed an algorithm for calculating nth roots, which was a special case of the methods given many centuries later by Ruffini and Horner.

Al-Kashi also produced tables of trigonometric functions as part of his studies of astronomy. His sine tables were correct to 4 sexagesimal digits, which corresponds to approximately 8 decimal places of accuracy. The construction of astronomical instruments such as the astrolabe, invented by Mohammad al-Fazari, was also a speciality of Muslim mathematicians.