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  2. Template:Sticky header - Wikipedia

    en.wikipedia.org/wiki/Template:Sticky_header

    Template:Sticky header/styles.css This template makes a table's column headers stick to the top of the screen as the table's data is scrolled in and out of view. It's used on tall tables that have column headers that might be difficult to remember as you scroll through the data.

  3. CSS - Wikipedia

    en.wikipedia.org/wiki/Cascading_Style_Sheets

    A superset of CSS 1, CSS 2 includes a number of new capabilities like absolute, relative, and fixed positioning of elements and z-index, the concept of media types, support for aural style sheets (which were later replaced by the CSS 3 speech modules) [47] and bidirectional text, and new font properties such as shadows.

  4. Bootstrapping (statistics) - Wikipedia

    en.wikipedia.org/wiki/Bootstrapping_(statistics)

    Histograms of the bootstrap distribution and the smooth bootstrap distribution appear below. The bootstrap distribution of the sample-median has only a small number of values. The smoothed bootstrap distribution has a richer support. However, note that whether the smoothed or standard bootstrap procedure is favorable is case-by-case and is ...

  5. Sum of absolute differences - Wikipedia

    en.wikipedia.org/wiki/Sum_of_absolute_differences

    To calculate the SAD values, the absolute value of the difference between each corresponding pair of pixels is used: the difference between 2 and 2 is 0, 4 and 1 is 3, 7 and 8 is 1, and so forth. Calculating the values of the absolute differences for each pixel, for the three possible template locations, gives the following:

  6. Position operator - Wikipedia

    en.wikipedia.org/wiki/Position_operator

    In quantum mechanics, the position operator is the operator that corresponds to the position observable of a particle. When the position operator is considered with a wide enough domain (e.g. the space of tempered distributions ), its eigenvalues are the possible position vectors of the particle.

  7. Sticking coefficient - Wikipedia

    en.wikipedia.org/wiki/Sticking_coefficient

    Sticking coefficient is the term used in surface physics to describe the ratio of the number of adsorbate atoms (or molecules) that adsorb, or "stick", to a surface to the total number of atoms that impinge upon that surface during the same period of time. [1]

  8. Position (geometry) - Wikipedia

    en.wikipedia.org/wiki/Position_(geometry)

    In geometry, a position or position vector, also known as location vector or radius vector, is a Euclidean vector that represents a point P in space. Its length represents the distance in relation to an arbitrary reference origin O , and its direction represents the angular orientation with respect to given reference axes.

  9. Absolute and relative terms - Wikipedia

    en.wikipedia.org/wiki/Absolute_and_relative_terms

    Absolute terms describe properties that are ideal in a Platonic sense, but that are not present in any concrete, real-world object. For example, while we say of many surfaces of physical things that they are flat, a rather reasonable interpretation of what we presumably observe makes it quite doubtful that these surfaces actually are flat.