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  2. Parabola - Wikipedia

    en.wikipedia.org/wiki/Parabola

    In the theory of quadratic forms, the parabola is the graph of the quadratic form x 2 (or other scalings), while the elliptic paraboloid is the graph of the positive-definite quadratic form x 2 + y 2 (or scalings), and the hyperbolic paraboloid is the graph of the indefinite quadratic form x 2 − y 2. Generalizations to more variables yield ...

  3. Parable - Wikipedia

    en.wikipedia.org/wiki/Parable

    Examples of Jesus' parables include the Good Samaritan and the Prodigal Son. Mashalim from the Old Testament include the parable of the ewe-lamb (told by Nathan in 2 Samuel 12:1-9 [8]) and the parable of the woman of Tekoah (in 2 Samuel 14:1-13 [9]). Parables also appear in Islam. In Sufi tradition, parables are used for imparting lessons and ...

  4. Parabolic arch - Wikipedia

    en.wikipedia.org/wiki/Parabolic_arch

    While a parabolic arch may resemble a catenary arch, a parabola is a quadratic function while a catenary is the hyperbolic cosine, cosh(x), a sum of two exponential functions. One parabola is f(x) = x 2 + 3x − 1, and hyperbolic cosine is cosh(x) = ⁠ e x + e −x / 2 ⁠. The curves are unrelated.

  5. Conic section - Wikipedia

    en.wikipedia.org/wiki/Conic_section

    If these points are real, the curve is a hyperbola; if they are imaginary conjugates, it is an ellipse; if there is only one double point, it is a parabola. If the points at infinity are the cyclic points [1: i : 0] and [1: – i : 0] , the conic section is a circle .

  6. List of hyperboloid structures - Wikipedia

    en.wikipedia.org/wiki/List_of_hyperboloid_structures

    Canton Tower, Guangzhou, China Kobe Port Tower, Kobe, Japan Cooling tower, Puertollano, Spain. This page is a list of hyperboloid structures.These were first applied in architecture by Russian engineer Vladimir Shukhov (1853–1939).

  7. Parabolic fractal distribution - Wikipedia

    en.wikipedia.org/wiki/Parabolic_fractal_distribution

    In probability and statistics, the parabolic fractal distribution is a type of discrete probability distribution in which the logarithm of the frequency or size of entities in a population is a quadratic polynomial of the logarithm of the rank (with the largest example having rank 1). This can markedly improve the fit over a simple power-law ...

  8. Fed Chair Powell says he won't resign if Trump asks him to ...

    www.aol.com/fed-chair-powell-says-wont-202841242...

    Federal Reserve Chair Jerome Powell said he won't step down if President-elect Donald Trump, who has previously criticized Powell's performance, asks him to resign.

  9. Parables of Jesus - Wikipedia

    en.wikipedia.org/wiki/Parables_of_Jesus

    Dr. Kenneth Boa states that "Parables are extended figures of comparison that often use short stories to teach a truth or answer a question. While the story in a parable is not historical, it is true to life, not a fairy tale. As a form of oral literature, the parable exploits realistic situations but makes effective use of the imagination...