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  2. Standard normal table - Wikipedia

    en.wikipedia.org/wiki/Standard_normal_table

    Z tables are typically composed as follows: The label for rows contains the integer part and the first decimal place of Z. The label for columns contains the second decimal place of Z. The values within the table are the probabilities corresponding to the table type.

  3. Z-order curve - Wikipedia

    en.wikipedia.org/wiki/Z-order_curve

    The Z-ordering can be used to efficiently build a quadtree (2D) or octree (3D) for a set of points. [5] [6] The basic idea is to sort the input set according to Z-order.Once sorted, the points can either be stored in a binary search tree and used directly, which is called a linear quadtree, [7] or they can be used to build a pointer based quadtree.

  4. Z-scan technique - Wikipedia

    en.wikipedia.org/wiki/Z-scan_technique

    In nonlinear optics z-scan technique is used to measure the non-linear index n 2 (Kerr nonlinearity) and the non-linear absorption coefficient Δα via the "closed" and "open" methods, respectively. As nonlinear absorption can affect the measurement of the non-linear index, the open method is typically used in conjunction with the closed method ...

  5. Computation of cyclic redundancy checks - Wikipedia

    en.wikipedia.org/wiki/Computation_of_cyclic...

    Code fragment 6: Cores of table based division. Using a 256-entry table is usually most convenient, but other sizes can be used. In small microcontrollers, using a 16-entry table to process four bits at a time gives a useful speed improvement while keeping the table small.

  6. Root mean square deviation of atomic positions - Wikipedia

    en.wikipedia.org/wiki/Root_mean_square_deviation...

    Molecular Distance Measures—a tutorial on how to calculate RMSD; RMSD—another tutorial on how to calculate RMSD with example code; Secondary Structure Matching (SSM) — a tool for protein structure comparison. Uses RMSD. GDT, LCS and LGA — different structure comparison measures. Description and services. SuperPose — a protein ...

  7. Probability density function - Wikipedia

    en.wikipedia.org/wiki/Probability_density_function

    In probability theory, a probability density function (PDF), density function, or density of an absolutely continuous random variable, is a function whose value at any given sample (or point) in the sample space (the set of possible values taken by the random variable) can be interpreted as providing a relative likelihood that the value of the ...

  8. Variance reduction - Wikipedia

    en.wikipedia.org/wiki/Variance_reduction

    The variance of randomly generated points within a unit square can be reduced through a stratification process. In mathematics, more specifically in the theory of Monte Carlo methods, variance reduction is a procedure used to increase the precision of the estimates obtained for a given simulation or computational effort. [1]

  9. Lempel–Ziv–Welch - Wikipedia

    en.wikipedia.org/wiki/Lempel–Ziv–Welch

    So even though the Z code is not in the table, the decoder is able to infer the unknown sequence and adds χ + (the first character of χ) to the table as the value of Z. This situation occurs whenever the encoder encounters input of the form cScSc , where c is a single character, S is a string and cS is already in the dictionary, but cSc is not.