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  2. Difference quotient - Wikipedia

    en.wikipedia.org/wiki/Difference_quotient

    [5] [6] The difference quotient is a measure of the average rate of change of the function over an interval (in this case, ... LB = P 0 = P 0 + 0Δ 1 P = P ...

  3. Numerical differentiation - Wikipedia

    en.wikipedia.org/wiki/Numerical_differentiation

    Therefore, the true derivative of f at x is the limit of the value of the difference quotient as the secant lines get closer and closer to being a tangent line: ′ = (+) (). Since immediately substituting 0 for h results in 0 0 {\displaystyle {\frac {0}{0}}} indeterminate form , calculating the derivative directly can be unintuitive.

  4. Five-point stencil - Wikipedia

    en.wikipedia.org/wiki/Five-point_stencil

    An illustration of the five-point stencil in one and two dimensions (top, and bottom, respectively). In numerical analysis, given a square grid in one or two dimensions, the five-point stencil of a point in the grid is a stencil made up of the point itself together with its four "neighbors".

  5. Finite difference method - Wikipedia

    en.wikipedia.org/wiki/Finite_difference_method

    For example, consider the ordinary differential equation ′ = + The Euler method for solving this equation uses the finite difference quotient (+) ′ to approximate the differential equation by first substituting it for u'(x) then applying a little algebra (multiplying both sides by h, and then adding u(x) to both sides) to get (+) + (() +).

  6. Logarithm - Wikipedia

    en.wikipedia.org/wiki/Logarithm

    For example, with z = 1.5 the third approximation yields 0.4167, which is about 0.011 greater than ln(1.5) = 0.405465, and the ninth approximation yields 0.40553, which is only about 0.0001 greater. The n th partial sum can approximate ln( z ) with arbitrary precision, provided the number of summands n is large enough.

  7. Fortnite players 'tricked' into unwanted purchases are ...

    www.aol.com/fortnite-players-tricked-unwanted...

    U.S. consumers who were “tricked” into purchases they didn't want from Fortnite maker Epic Games are now starting to receive refund checks, the Federal Trade Commission said this week. Back in ...

  8. What Doctors Want You to Know About the Latest COVID-19 ...

    www.aol.com/lifestyle/doctors-want-know-latest...

    LB.1 symptoms There is chatter online about people having a really intense sore throat with COVID-19 lately, and it’s possible that’s due to LB.1 (although tricky to know for sure).

  9. Symmetric derivative - Wikipedia

    en.wikipedia.org/wiki/Symmetric_derivative

    For differentiable functions, the symmetric difference quotient does provide a better numerical approximation of the derivative than the usual difference quotient. [3] The symmetric derivative at a given point equals the arithmetic mean of the left and right derivatives at that point, if the latter two both exist. [1] [2]: 6