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  2. Ballistic coefficient - Wikipedia

    en.wikipedia.org/wiki/Ballistic_coefficient

    When the correct G model retardation factors are applied within the Siacci mathematical formula for the same G model C b, a corrected trajectory can be calculated for any G model. Another method of determining trajectory and ballistic coefficient was developed and published by Wallace H. Coxe and Edgar Beugless of DuPont in 1936.

  3. Torus - Wikipedia

    en.wikipedia.org/wiki/Torus

    Poloidal direction (red arrow) and toroidal direction (blue arrow) A torus can be parametrized as: [2] (,) = (+ ⁡) ⁡ (,) = (+ ⁡) ⁡ (,) = ⁡. using angular coordinates , [,), representing rotation around the tube and rotation around the torus' axis of revolution, respectively, where the major radius is the distance from the center of the tube to the center of the torus and the minor ...

  4. Black–Scholes model - Wikipedia

    en.wikipedia.org/wiki/Black–Scholes_model

    In fact, the Black–Scholes formula for the price of a vanilla call option (or put option) can be interpreted by decomposing a call option into an asset-or-nothing call option minus a cash-or-nothing call option, and similarly for a put—the binary options are easier to analyze, and correspond to the two terms in the Black–Scholes formula.

  5. Fourier transform - Wikipedia

    en.wikipedia.org/wiki/Fourier_transform

    The Poisson summation formula (PSF) is an equation that relates the Fourier series coefficients of the periodic summation of a function to values of the function's continuous Fourier transform. The Poisson summation formula says that for sufficiently regular functions f, ^ = ().

  6. Gamma function - Wikipedia

    en.wikipedia.org/wiki/Gamma_function

    The simple formula for the factorial, x! = 1 × 2 × ⋯ × x is only valid when x is a positive integer, ... We can calculate ...

  7. Taylor series - Wikipedia

    en.wikipedia.org/wiki/Taylor_series

    The Taylor series can be used to calculate the value of an entire function at every point, if the value of the function, and of all of its derivatives, are known at a single point. Uses of the Taylor series for analytic functions include: The partial sums (the Taylor polynomials) of the series can be used as approximations of the function ...

  8. E6B - Wikipedia

    en.wikipedia.org/wiki/E6B

    The mathematical formulas that equate to the results of the flight computer wind calculator are as follows: (desired course is d , ground speed is V g , heading is a , true airspeed is V a , wind direction is w , wind speed is V w .

  9. Sunrise equation - Wikipedia

    en.wikipedia.org/wiki/Sunrise_equation

    In the equation given at the beginning, the cosine function on the left side gives results in the range [-1, 1], but the value of the expression on the right side is in the range [,].