รูปสวยดีนะครับ. Nooonuii เคยอ่าน Fermat's Last Theorem แล้วหรือครับ. ?
1812 : Jean Victor Poncelet (1788-1867), a military engineer, was captured while Napoleon's army was retreating from Moscow. He profited from this enforced leisure (until his release in June 1814) by resuming his study of mathematics. While there, he did important work on projective geometry
|