- orthogonal planes
- мат. ортогональные плоскости
Большой англо-русский и русско-английский словарь. 2001.
orthogonal planes
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Orthogonal group — Group theory Group theory … Wikipedia
Orthogonal matrix — In linear algebra, an orthogonal matrix (less commonly called orthonormal matrix[1]), is a square matrix with real entries whose columns and rows are orthogonal unit vectors (i.e., orthonormal vectors). Equivalently, a matrix Q is orthogonal if… … Wikipedia
Orthogonal coordinates — In mathematics, orthogonal coordinates are defined as a set of d coordinates q = (q1, q2, ..., qd) in which the coordinate surfaces all meet at right angles (note: superscripts are indices, not exponents). A coordinate surface for a particular… … Wikipedia
Courbes planes — Courbe plane En géométrie, une courbe plane est une courbe qui est entièrement contenue dans un (unique) plan, et qui est identifiable à une fonction continue : où I est un intervalle de l ensemble des nombres réels. L image d une courbe est … Wikipédia en Français
Orthotropic material — Wood is an example of an orthotropic material. Material properties in three perpendicular directions (axial, radial, and circumferential) are different. An orthotropic material has two or three mutually orthogonal twofold axes of rotational… … Wikipedia
Rotation (mathematics) — Rotation of an object in two dimensions around a point O. In geometry and linear algebra, a rotation is a transformation in a plane or in space that describes the motion of a rigid body around a fixed point. A rotation is different from a… … Wikipedia
SO(4) — In mathematics, SO(4) is the four dimensional rotation group; that is, the group of rotations about a fixed point in four dimensional Euclidean space. The name comes from the fact that it is (isomorphic to) the special orthogonal group of order 4 … Wikipedia
Rotation matrix — In linear algebra, a rotation matrix is a matrix that is used to perform a rotation in Euclidean space. For example the matrix rotates points in the xy Cartesian plane counterclockwise through an angle θ about the origin of the Cartesian… … Wikipedia
Material ortótropo — La madera es un ejemplo de un material ortótropo: sus propiedades en tres direcciones perpendiculares (axial, radial y circunferencial) son diferentes. Un material ortótropo tiene dos o tres ejes ortogonales entre sí, de doble simetría rotacional … Wikipedia Español
Pythagorean theorem — See also: Pythagorean trigonometric identity The Pythagorean theorem: The sum of the areas of the two squares on the legs (a and b) equals the area of the square on the hypotenuse (c) … Wikipedia
Hooke's law — models the properties of springs for small changes in length Prof. Walter Lewin explains Hooke s law, in … Wikipedia
