SADI Muslihuddin Abumuhammad Abdulloh ibni Mushrifuddin (1203/8, Sheroz—1292, hamon jo), shoir, nasrnavis va mutafakkiri fors-tojik. …
Mufassal »STROFOIDA
STROFOIDA (az yunoni strophos — lentai tobkhurda va eidos — shakl), khati kaji algebravii tartibi seyumro guyand, ki muodilaash dar sistemai koordinatahoi dekarti meboshad. Avvalin marotiba E. Torichelli omukhtaast (1645).
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