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  2. Dirac delta function - Wikipedia

    en.wikipedia.org/wiki/Dirac_delta_function

    In mathematical analysis, the Dirac delta function (or δ distribution), also known as the unit impulse, [1] is a generalized function on the real numbers, whose value is zero everywhere except at zero, and whose integral over the entire real line is equal to one.

  3. Linear–quadratic regulator - Wikipedia

    en.wikipedia.org/wiki/Linear–quadratic_regulator

    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. One of the main results in the theory is that the solution is provided by the linear–quadratic regulator (LQR), a feedback controller whose equations are given below.

  4. Impulse (physics) - Wikipedia

    en.wikipedia.org/wiki/Impulse_(physics)

    In classical mechanics, impulse (symbolized by J or Imp) is the change in momentum of an object. If the initial momentum of an object is p 1, and a subsequent momentum is p 2, the object has received an impulse J: =. Momentum is a vector quantity, so impulse is also a vector quantity.

  5. Limit cycle - Wikipedia

    en.wikipedia.org/wiki/Limit_cycle

    Stable limit cycle (shown in bold) and two other trajectories spiraling into it Stable limit cycle (shown in bold) for the Van der Pol oscillator. In mathematics, in the study of dynamical systems with two-dimensional phase space, a limit cycle is a closed trajectory in phase space having the property that at least one other trajectory spirals into it either as time approaches infinity or as ...

  6. Limit set - Wikipedia

    en.wikipedia.org/wiki/Limit_set

    fixed points; periodic orbits; limit cycles; attractors; In general, limits sets can be very complicated as in the case of strange attractors, but for 2-dimensional dynamical systems the Poincaré–Bendixson theorem provides a simple characterization of all nonempty, compact -limit sets that contain at most finitely many fixed points as a fixed point, a periodic orbit, or a union of fixed ...

  7. My Husband's Grandpa Cracked the Code to the Best-Ever ... - AOL

    www.aol.com/husbands-grandpa-cracked-code-best...

    A traditional snickerdoodle recipe includes unsalted butter, granulated sugar, eggs, all-purpose flour, cream of tartar, baking soda and salt.

  8. Don't make boring mashed potatoes this Thanksgiving. Follow ...

    www.aol.com/dont-boring-mashed-potatoes...

    Smooth, creamy, fluffy mashed potatoes are one of the favorite ingredients of many Thanksgiving dinners. In fact, some people have described mashed potato as the glue that knits the Thanksgiving ...

  9. Could Matt Gaetz decide to keep his House seat? It's ... - AOL

    www.aol.com/could-matt-gaetz-decide-keep...

    The House Practice guide says members-elect “entitled to take the oath may decline it by resigning before taking a seat, because membership cannot be imposed on one without his consent.”