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The theory of optimal control is concerned with operating a dynamic system at minimum cost. The case where the system dynamics are described by a set of linear differential equations and the cost is described by a quadratic function is called the LQ problem.
Figure 1. Plots of quadratic function y = ax 2 + bx + c, varying each coefficient separately while the other coefficients are fixed (at values a = 1, b = 0, c = 0). A quadratic equation whose coefficients are real numbers can have either zero, one, or two distinct real-valued solutions, also called roots.
The Syllabus of Errors is the name given to an index document issued by the Holy See under Pope Pius IX on 8 December 1864 at the same time as his encyclical letter Quanta cura. [1] It collected a total of 80 propositions that the Pope considered to be current errors or heresies , pairing the briefest headings with references to the various ...
Dark is a German science fiction thriller television series co-created by the couple Baran bo Odar and Jantje Friese. [5] [6] [7] It ran for three seasons from 2017 to 2020.The story follows dysfunctional characters from the fictional town of Winden in Germany, as they pursue the truth in the aftermath of a child's disappearance.