Felix Klein
18491925
German mathematician, educator, and historian known for his Erlangen Program, which unified geometries by their symmetry groups, and for his work in complex analysis and non-Euclidean geometry
2 ອະນຸສອນສະຖານ ພົບ
ເບິ່ງທັງໝົດໃນຊີວິດ ດ້ວຍຕົວກອງທີ່ໃຊ້ແລ້ວ18421925
French astronomer, prolific author of popular science and early science fiction, and founder of L'Astronomie magazine
