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  2. Glossary of mathematical symbols - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_mathematical...

    1. Means "greater than or equal to". That is, whatever A and B are, A ≥ B is equivalent to A > B or A = B. 2. Between two groups, may mean that the second one is a subgroup of the first one. 1. Means "much less than" and "much greater than".

  3. Significant figures - Wikipedia

    en.wikipedia.org/wiki/Significant_figures

    1.79 ± 0.06 (correct), 1.79 ± 0.96 (correct), 1.79 ± 1.96 (incorrect). The digit positions of the last significant figures in x best and σ x are the same, otherwise the consistency is lost. For example, "1.79 ± 0.067" is incorrect, as it does not make sense to have more accurate uncertainty than the best estimate.

  4. 1 - Wikipedia

    en.wikipedia.org/wiki/1

    1 (one, unit, unity) is a number, numeral, and glyph.It is the first and smallest positive integer of the infinite sequence of natural numbers.This fundamental property has led to its unique uses in other fields, ranging from science to sports, where it commonly denotes the first, leading, or top thing in a group. 1 is the unit of counting or measurement, a determiner for singular nouns, and a ...

  5. Grade (slope) - Wikipedia

    en.wikipedia.org/wiki/Grade_(slope)

    as a per mille figure (denoted with the symbol ... 1. This means that for every 4 units (feet or metres) of horizontal distance there is a 1 unit (foot or metre ...

  6. List of scale model sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_scale_model_sizes

    Original nominal 25 mm figure scale; though a 6-foot human in 1:87 is closer to 21 mm. 1:82: 3.717 mm An intermediate scale (HO/OO) intended to apply to both HO and OO scale train sets. Also used for some military models 1:80: 3.810 mm HOj scale. Very close to wargaming 20 mm figure scale (20 mm is actually 1:80.5). [10] 1:76.2: 4 mm: Model ...

  7. Figure 1 - Wikipedia

    en.wikipedia.org/wiki/Figure_1

    Logo [1] Figure 1 is a Toronto, Ontario-based online social networking service for healthcare professionals to post and comment on medical images. Figure 1 was founded in Toronto by Dr. Joshua Landy, Richard Penner and Gregory Levey. The platform launched in North America in May 2013 and is now available in more than 100 countries. [2]

  8. Self-similarity - Wikipedia

    en.wikipedia.org/wiki/Self-similarity

    A self-affine fractal with Hausdorff dimension=1.8272. In mathematics, self-affinity is a feature of a fractal whose pieces are scaled by different amounts in the x- and y-directions. This means that to appreciate the self similarity of these fractal objects, they have to be rescaled using an anisotropic affine transformation.

  9. 1:24 scale - Wikipedia

    en.wikipedia.org/wiki/1:24_scale

    1:24 scale model of the Ford GT, at rear, behind 1:32 and nominal HO models, illustrate the traditional slot car scales. 1:24 scale is a size for automobile models such as injection-molded plastic model kits or metal die-cast toys , which are built and collected by both children and adults.