A gallery of conics by five elements - Paris Pamfilos This paper is a review on conics defined by five elements, i.e., either lines to which the conic is tangent or points through which the conic passes. The gallery contains all cases combining a number (n) of points and a number (5-n) of lines and also allowing coincidences of some points with some lines. Points and/or lines at infinity are handled as particular cases. ✪ ✪ ✪ ✪ ✪ Link tải tài liệu: LINK TẢI TÀI LIỆU Theo LTTK Education