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  2. Additive color - Wikipedia

    en.wikipedia.org/wiki/Additive_color

    The first permanent color photograph, taken by Thomas Sutton, under the direction of James Clerk Maxwell in 1861. Systems of additive color are motivated by the Young–Helmholtz theory of trichromatic color vision, which was articulated around 1850 by Hermann von Helmholtz, based on earlier work by Thomas Young.

  3. Secant method - Wikipedia

    en.wikipedia.org/wiki/Secant_method

    The secant method is an iterative numerical method for finding a zero of a function f.Given two initial values x 0 and x 1, the method proceeds according to the recurrence relation

  4. Gauss–Seidel method - Wikipedia

    en.wikipedia.org/wiki/Gauss–Seidel_method

    In numerical linear algebra, the Gauss–Seidel method, also known as the Liebmann method or the method of successive displacement, is an iterative method used to solve a system of linear equations.