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  2. Federal Board of Intermediate and Secondary Education

    en.wikipedia.org/wiki/Federal_Board_of...

    The FBISE was established under the FBISE Act 1975. [2] It is an autonomous body of working under the Ministry of Federal Education and Professional Training. [3] The official website of FBISE was launched on June 7, 2001, and was inaugurated by Mrs. Zobaida Jalal, the Minister for Education [4] The first-ever online result of FBISE was announced on 18 August 2001. [5]

  3. Dilation (metric space) - Wikipedia

    en.wikipedia.org/wiki/Dilation_(metric_space)

    In Euclidean space, such a dilation is a similarity of the space. [2] Dilations change the size but not the shape of an object or figure. Every dilation of a Euclidean space that is not a congruence has a unique fixed point [3] that is called the center of dilation. [4] Some congruences have fixed points and others do not. [5]

  4. Scale invariance - Wikipedia

    en.wikipedia.org/wiki/Scale_invariance

    In physics, mathematics and statistics, scale invariance is a feature of objects or laws that do not change if scales of length, energy, or other variables, are multiplied by a common factor, and thus represent a universality. The technical term for this transformation is a dilatation (also known as dilation).

  5. Homothety - Wikipedia

    en.wikipedia.org/wiki/Homothety

    In mathematics, a homothety (or homothecy, or homogeneous dilation) is a transformation of an affine space determined by a point S called its center and a nonzero number k called its ratio, which sends point X to a point X ′ by the rule, [1]

  6. Contraction (operator theory) - Wikipedia

    en.wikipedia.org/wiki/Contraction_(operator_theory)

    A completely non-unitary contraction T is said to belong to the class C 0 if and only if f(T) = 0 for some non-zero f in H ∞. In this case the set of such f forms an ideal in H ∞ . It has the form φ ⋅ H ∞ where g is an inner function , i.e. such that |φ| = 1 on S 1 : φ is uniquely determined up to multiplication by a complex number ...

  7. Formula - Wikipedia

    en.wikipedia.org/wiki/Formula

    In mathematics, a formula generally refers to an equation or inequality relating one mathematical expression to another, with the most important ones being mathematical theorems. For example, determining the volume of a sphere requires a significant amount of integral calculus or its geometrical analogue, the method of exhaustion . [ 3 ]

  8. Dilation - Wikipedia

    en.wikipedia.org/wiki/Dilation

    Dilation (operator theory), a dilation of an operator on a Hilbert space; Dilation (morphology), an operation in mathematical morphology; Scaling (geometry), including: Homogeneous dilation , the scalar multiplication operator on a vector space or affine space; Inhomogeneous dilation, where scale factors may differ in different directions

  9. Galilean transformation - Wikipedia

    en.wikipedia.org/wiki/Galilean_transformation

    Technically, the Galilean group is a celebrated group contraction of the Poincaré group (which, in turn, is a group contraction of the de Sitter group SO(1,4)). [9] Formally, renaming the generators of momentum and boost of the latter as in P 0 ↦ H / c K i ↦ c ⋅ C i,