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  2. Mohawk hairstyle - Wikipedia

    en.wikipedia.org/wiki/Mohawk_hairstyle

    A young man wearing a mohawk Paratroopers of the 101st Airborne Division in 1944 Girl with rattail mohawk, 1951 Ukrainian Cossack musician with chupryna or oseledets. The mohawk (also referred to as a mohican in British English) is a hairstyle in which, in the most common variety, both sides of the head are shaven, leaving a strip of noticeably longer hair in the center.

  3. Death Hawk - Wikipedia

    en.wikipedia.org/wiki/Death_Hawk

    Death Hawk is a fictional American comic book character, a self-styled salvage expert in the 25th century. The character starred in a namesake, three-issue series published by Adventure Publications from 1987 to 1988, created and written by Mark Ellis.

  4. Numerical differentiation - Wikipedia

    en.wikipedia.org/wiki/Numerical_differentiation

    The simplest method is to use finite difference approximations. A simple two-point estimation is to compute the slope of a nearby secant line through the points (x, f(x)) and (x + h, f(x + h)). [1] Choosing a small number h, h represents a small change in x, and it can be either positive or negative.

  5. Acherontia atropos - Wikipedia

    en.wikipedia.org/wiki/Acherontia_atropos

    Death's-head hawk moths are large, ranging from 3.5 to 5 inches (80–120 mm) as adults. [1] The upper wings are dark, creating a stark contrast between them and the lower wings, which range from a bright yellow to a light cream, yellow being the more common.

  6. Numeric precision in Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Numeric_precision_in...

    Here the 'IEEE 754 double value' resulting of the 15 bit figure is 3.330560653658221E-15, which is rounded by Excel for the 'user interface' to 15 digits 3.33056065365822E-15, and then displayed with 30 decimals digits gets one 'fake zero' added, thus the 'binary' and 'decimal' values in the sample are identical only in display, the values ...

  7. Difference engine - Wikipedia

    en.wikipedia.org/wiki/Difference_engine

    A difference engine is an automatic mechanical calculator designed to tabulate polynomial functions. It was designed in the 1820s, and was first created by Charles Babbage . The name difference engine is derived from the method of finite differences , a way to interpolate or tabulate functions by using a small set of polynomial co-efficients.

  8. Cohen's h - Wikipedia

    en.wikipedia.org/wiki/Cohen's_h

    Describe the differences in proportions using the rule of thumb criteria set out by Cohen. [1] Namely, h = 0.2 is a "small" difference, h = 0.5 is a "medium" difference, and h = 0.8 is a "large" difference. [2] [3] Only discuss differences that have h greater than some threshold value, such as 0.2. [4]

  9. Decimal representation - Wikipedia

    en.wikipedia.org/wiki/Decimal_representation

    13 = 0.33333... 1 ⁄ 7 = 0.142857142857... 1318 ⁄ 185 = 7.1243243243... Every time this happens the number is still a rational number (i.e. can alternatively be represented as a ratio of an integer and a positive integer). Also the converse is true: The decimal expansion of a rational number is either finite, or endlessly repeating.