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  2. Taylor series - Wikipedia

    en.wikipedia.org/wiki/Taylor_series

    t. e. In mathematics, the Taylor series or Taylor expansion of a function is an infinite sum of terms that are expressed in terms of the function's derivatives at a single point. For most common functions, the function and the sum of its Taylor series are equal near this point.

  3. List of trigonometric identities - Wikipedia

    en.wikipedia.org/wiki/List_of_trigonometric...

    A formula for computing the trigonometric identities for the one-third angle exists, but it requires finding the zeroes of the cubic equation 4x 3 − 3x + d = 0, where is the value of the cosine function at the one-third angle and d is the known value of the cosine function at the full angle.

  4. Platonic solid - Wikipedia

    en.wikipedia.org/wiki/Platonic_solid

    This follows from the spherical excess formula for a spherical polygon and the fact that the vertex figure of the polyhedron {p,q} is a regular q-gon. The solid angle of a face subtended from the center of a platonic solid is equal to the solid angle of a full sphere (4 π steradians) divided by the number of faces. This is equal to the angular ...

  5. List of formulae involving π - Wikipedia

    en.wikipedia.org/wiki/List_of_formulae_involving_π

    More formulas of this nature can be given, as explained by Ramanujan's theory of elliptic functions to alternative bases. Perhaps the most notable hypergeometric inversions are the following two examples, involving the Ramanujan tau function τ {\displaystyle \tau } and the Fourier coefficients j {\displaystyle \mathrm {j} } of the J-invariant ...

  6. What Pharmacists and R.D.N.s Really Think About Personalized ...

    www.aol.com/pharmacists-r-d-n-really-212500565.html

    In my signup process, I was quoted $143 total for 28 daily performance greens, a 14-serving custom protein powder, a 14-serving pre-workout formula, and a 21-serving hydration powder.

  7. Stellar classification - Wikipedia

    en.wikipedia.org/wiki/Stellar_classification

    A simple chart for classifying the main star types using Harvard classification In astronomy , stellar classification is the classification of stars based on their spectral characteristics. Electromagnetic radiation from the star is analyzed by splitting it with a prism or diffraction grating into a spectrum exhibiting the rainbow of colors ...

  8. Pythagorean triple - Wikipedia

    en.wikipedia.org/wiki/Pythagorean_triple

    A Pythagorean triple consists of three positive integers a, b, and c, such that a2 + b2 = c2. Such a triple is commonly written (a, b, c), a well-known example is (3, 4, 5). If (a, b, c) is a Pythagorean triple, then so is (ka, kb, kc) for any positive integer k. A triangle whose side lengths are a Pythagorean triple is a right triangle and ...

  9. Pink Floyd discography - Wikipedia

    en.wikipedia.org/wiki/Pink_Floyd_discography

    The discography of the English rock group Pink Floyd consists of 15 studio albums, six live albums, 12 compilation albums, five box sets, three EPs, and 27 singles. Formed in 1965, Pink Floyd earned recognition for their psychedelic or space rock music, and, later, their progressive rock music. [ 1 ] The group have sold over 250 million records ...