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  2. SMART Health Card - Wikipedia

    en.wikipedia.org/wiki/SMART_Health_Card

    VCI's purpose was to employ the SMART Health Card framework in order to create a unified proof-of-vaccination system for COVID-19 vaccines. [19] Sample proof of vaccination from British Columbia using SMART Health Card framework. The California Department of Public Health introduced a Digital Covid-19 Vaccine Record portal in June 2021 ...

  3. General Leibniz rule - Wikipedia

    en.wikipedia.org/wiki/General_Leibniz_rule

    The proof of the general Leibniz rule [2]: 68–69 proceeds by induction. Let f {\displaystyle f} and g {\displaystyle g} be n {\displaystyle n} -times differentiable functions. The base case when n = 1 {\displaystyle n=1} claims that: ( f g ) ′ = f ′ g + f g ′ , {\displaystyle (fg)'=f'g+fg',} which is the usual product rule and is known ...

  4. Characterizations of the exponential function - Wikipedia

    en.wikipedia.org/wiki/Characterizations_of_the...

    Toggle Proof that each characterization makes sense subsection. 3.1 Characterization 1. 3.2 Characterization 2. ... = 1 and the definition of the derivative as ...

  5. Product rule - Wikipedia

    en.wikipedia.org/wiki/Product_rule

    In calculus, the product rule (or Leibniz rule [1] or Leibniz product rule) is a formula used to find the derivatives of products of two or more functions.For two functions, it may be stated in Lagrange's notation as () ′ = ′ + ′ or in Leibniz's notation as () = +.

  6. COVID-19 vaccine card - Wikipedia

    en.wikipedia.org/wiki/COVID-19_vaccine_card

    The EU Digital COVID Certificate in Ireland was initially used for international travel as restrictions into and out of the country eased from 19 July, [25] but was also used in restaurants, hotels and bars as proof of vaccination to gain access to indoor hospitality, [26] as well as in nightclubs, indoor live entertainment, cinemas, theatres ...

  7. Vaccine mandates: Here are the companies requiring proof of ...

    www.aol.com/finance/companies-requiring-proof...

    Salaried workers will get their hours adjusted to accommodate vaccination appointments. New hires in Amazon warehouses can earn a $100 bonus on their first day for showing proof of COVID-19 ...

  8. Why isn't vaccination proof required for domestic flights? - AOL

    www.aol.com/news/why-isnt-vaccination-proof...

    Calls are rising for airlines to require vaccination proof for domestic passengers. Airlines aren't happy about the idea.

  9. Jacobi's formula - Wikipedia

    en.wikipedia.org/wiki/Jacobi's_formula

    In matrix calculus, Jacobi's formula expresses the derivative of the determinant of a matrix A in terms of the adjugate of A and the derivative of A. [1]If A is a differentiable map from the real numbers to n × n matrices, then