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  2. Simple linear regression - Wikipedia

    en.wikipedia.org/wiki/Simple_linear_regression

    In order to represent this information graphically, in the form of the confidence bands around the regression line, one has to proceed carefully and account for the joint distribution of the estimators. It can be shown [12] that at confidence level (1 − γ) the confidence band has hyperbolic form given by the equation

  3. Simple module - Wikipedia

    en.wikipedia.org/wiki/Simple_module

    Z-modules are the same as abelian groups, so a simple Z-module is an abelian group which has no non-zero proper subgroups.These are the cyclic groups of prime order.. If I is a right ideal of R, then I is simple as a right module if and only if I is a minimal non-zero right ideal: If M is a non-zero proper submodule of I, then it is also a right ideal, so I is not minimal.

  4. Verse–chorus form - Wikipedia

    en.wikipedia.org/wiki/Verse–chorus_form

    Verse–chorus form is a musical form going back to the 1840s, in such songs as "Oh! Susanna", "The Daring Young Man on the Flying Trapeze", and many others. [1] [2] It became passé in the early 1900s, with advent of the AABA (with verse) form in the Tin Pan Alley days.

  5. Big O notation - Wikipedia

    en.wikipedia.org/wiki/Big_O_notation

    Big O notation is a mathematical notation that describes the limiting behavior of a function when the argument tends towards a particular value or infinity. Big O is a member of a family of notations invented by German mathematicians Paul Bachmann, [1] Edmund Landau, [2] and others, collectively called Bachmann–Landau notation or asymptotic notation.

  6. AVL tree - Wikipedia

    en.wikipedia.org/wiki/AVL_tree

    By applying Join, all the subtrees on the left side are merged bottom-up using keys on the path as intermediate nodes from bottom to top to form the left tree, and the right part is asymmetric. The cost of Split is O(log n ) , order of the height of the tree.

  7. Log-linear model - Wikipedia

    en.wikipedia.org/wiki/Log-linear_model

    A log-linear model is a mathematical model that takes the form of a function whose logarithm equals a linear combination of the parameters of the model, which makes it possible to apply (possibly multivariate) linear regression. That is, it has the general form

  8. Merge sort - Wikipedia

    en.wikipedia.org/wiki/Merge_sort

    The closed form follows from the master theorem for divide-and-conquer recurrences. The number of comparisons made by merge sort in the worst case is given by the sorting numbers . These numbers are equal to or slightly smaller than ( n ⌈ lg n ⌉ − 2 ⌈lg n ⌉ + 1), which is between ( n lg n − n + 1) and ( n lg n + n + O(lg n )). [ 6 ]

  9. Euler's formula - Wikipedia

    en.wikipedia.org/wiki/Euler's_formula

    This is also argued to link five fundamental constants with three basic arithmetic operations, but, unlike Euler's identity, without rearranging the addends from the general case: = ⁡ + ⁡ = + An interpretation of the simplified form e iτ = 1 is that rotating by a full turn is an identity function.