Tomb of Khayam (Paper model)

Dimension : 17*16*30 Cm

Khayam:

As a mathematician, he is most notable for his work on the classification and solution of cubic equations, where he provided a geometric formulation based on the intersection of conics.[5] He also contributed to a deeper understanding of Euclid's parallel axiom.[6]: 284 As an astronomer, he calculated the duration of the solar year with remarkable precision and accuracy, and designed the Jalali calendar, a solar calendar with a very precise 33-year intercalation cycle[7]: 659 [b] which provided the basis for the Persian calendar that is still in use after nearly a millennium.