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  2. Hamiltonian optics - Wikipedia

    en.wikipedia.org/wiki/Hamiltonian_optics

    and the optical path length S BC between points B and C along the ray connecting them is the same as the optical path length S AD between points A and D along the ray connecting them. The optical path length is constant between wavefronts. Phase space

  3. Lagrange invariant - Wikipedia

    en.wikipedia.org/wiki/Lagrange_invariant

    For a given optical system, the Lagrange invariant is a constant throughout all space, that is, it is invariant upon refraction and transfer. The optical invariant is a generalization of the Lagrange invariant which is formed using the ray heights and angles of any two rays. For these rays, the optical invariant is a constant throughout all space.

  4. Glossary of physics - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_physics

    An optical system that produces no net convergence or divergence of the beam, i.e. has an infinite effective focal length. This type of system can be created with a pair of optical elements where the distance between the elements is equal to the sum of each element's focal length ( d = f 1 + f 2 {\displaystyle d=f_{1}+f_{2}} ).

  5. Mathematics - Wikipedia

    en.wikipedia.org/wiki/Mathematics

    Some students studying math may develop an apprehension or fear about their performance in the subject. This is known as math anxiety or math phobia, and is considered the most prominent of the disorders impacting academic performance. Math anxiety can develop due to various factors such as parental and teacher attitudes, social stereotypes ...

  6. Ray-tracing hardware - Wikipedia

    en.wikipedia.org/wiki/Ray-tracing_hardware

    On January 18, 2022, Samsung announced their Exynos 2200 AP SoC with hardware-accelerated ray tracing based on the AMD RDNA2 GPU architecture. On June 28, 2022, Arm announced their Immortalis-G715 with hardware-accelerated ray tracing. On November 16, 2022, Qualcomm announced their Snapdragon 8 Gen 2 with hardware-accelerated ray tracing.

  7. Fred Optical Engineering Software - Wikipedia

    en.wikipedia.org/wiki/Fred_Optical_Engineering...

    Fred Optical Engineering Software (FRED) is a commercial 3D CAD computer program for optical engineering used to simulate the propagation of light through optical systems. Fred can handle both incoherent and coherent light using Gaussian beam propagation.

  8. History of education - Wikipedia

    en.wikipedia.org/wiki/History_of_education

    A Roman student would progress through schools just as a student today might go from elementary school to middle school, then to high school, and finally college. Progression depended more on ability than age [38] with great emphasis being placed upon a student's ingenium or inborn "gift" for learning, [40] and a more tacit emphasis on a ...

  9. Aberrations of the eye - Wikipedia

    en.wikipedia.org/wiki/Aberrations_of_the_eye

    For light to converge to a perfect point, the wavefront emerging from the optical system must be a perfect sphere centered on the image point. The distance in micrometers between the actual wavefront and the ideal wavefront is the wavefront aberration, which is the standard method of showing the aberrations of the eye.

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