Mathematics. The axis of symmetry of a conic which passes through the foci; the transverse axis. Contrasted with conjugate axis.
| 单词 | θ115647 |
| 释义 | the world > relative properties > number > geometry > geometric space > [noun] > division or marking of > axis > passing through foci (7) principal axis1704 Mathematics. The axis of symmetry of a conic which passes through the foci; the transverse axis. Contrasted with conjugate axis. transverse axis1704 (a) an axis transverse to the main axis, as in a crystal; (b) Geometry the axis passing through the foci of a conic section (in an ellipse, the major… transverse1743 Something that is transverse: spec. The transverse axis of a conic section. longitudinal axis1744 the long axis of an object or structure (long axis n. at long, adj.1 n.1compounds 4a); spec. an axis running the length of a craft or vehicle… focal axis1794 (a) Geometry the line passing through the focus or foci of a conic section, perpendicular to the directrix; (b) Optics the line which passes… major axis1840 the axis of a conic section, which passes through the foci, esp. the longer axis of an ellipse; also called principal axis, transverse axis. Subcategories:— perpendicular to (1) |
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