Closed+conic
61Projective line — In mathematics, a projective line is a one dimensional projective space. The projective line over a field K , denoted P1( K ), may be defined as the set of one dimensional subspaces of the two dimensional vector space K 2 (it does carry other… …
62List of theorems — This is a list of theorems, by Wikipedia page. See also *list of fundamental theorems *list of lemmas *list of conjectures *list of inequalities *list of mathematical proofs *list of misnamed theorems *Existence theorem *Classification of finite… …
63Abies balsamea — Taxobox name = Balsam Fir status = LR/lc | status system = IUCN2.3 image width = 240px image caption = Tree with cones regnum = Plantae divisio = Pinophyta classis = Pinopsida ordo = Pinales familia = Pinaceae genus = Abies species = A. balsamea… …
64Picea sitchensis — Taxobox name = Sitka Spruce status = LR/lc | status system = IUCN2.3 image width = 250px image caption = Sitka Spruce 50 55 m tall in a forestry plantation in Britain regnum = Plantae divisio = Pinophyta classis = Pinopsida ordo = Pinales familia …
65Sumatran Pine — Taxobox name = Sumatran Pine status = VU status system = iucn2.3 regnum = Plantae divisio = Pinophyta classis = Pinopsida ordo = Pinales familia = Pinaceae genus = Pinus subgenus = Pinus species = P. merkusii binomial = Pinus merkusii binomial… …
66Biquaternion — In abstract algebra, the biquaternions are the numbers where w, x, y, and z are complex numbers and the elements of {1, i, j, k} multiply as in the quaternion group. As there are three types of complex number, so there are three types of… …
67Abies magnifica — Taxobox name = Red Fir status = LR/lc | status system = IUCN2.3 image width = 240px image caption = Red Fir forest, Yosemite National Park regnum = Plantae divisio = Pinophyta classis = Pinopsida ordo = Pinales familia = Pinaceae genus = Abies… …
68Timeline of Islamic science and engineering — This timeline of Islamic science and engineering covers the general development of science and technology in the Islamic world during the Islamic Golden Age, usually dated from the 7th to 16th centuries.From the 17th century onwards, the advances …
69Kepler problem — In classical mechanics, Kepler’s problem is a special case of the two body problem, in which the two bodies interact by a central force F that varies in strength as the inverse square of the distance r between them. The force may be either… …
70Pseudotsuga menziesii — Coast Douglas fir in Warsaw Conservation status …
