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  2. Raymond Paley - Wikipedia

    en.wikipedia.org/wiki/Raymond_Paley

    Photograph of Paley's grave in The Old Banff Cemetery. The main gate is visible on the left. Raymond Edward Alan Christopher Paley (7 January 1907 – 7 April 1933) was an English mathematician who made significant contributions to mathematical analysis before dying young in a skiing accident.

  3. MRB constant - Wikipedia

    en.wikipedia.org/wiki/MRB_constant

    First 100 partial sums of () (/). The MRB constant is a mathematical constant, with decimal expansion 0.187859… (sequence A037077 in the OEIS).The constant is named after its discoverer, Marvin Ray Burns, who published his discovery of the constant in 1999. [1]

  4. Worksheet - Wikipedia

    en.wikipedia.org/wiki/Worksheet

    The form comes with two worksheets, one to calculate exemptions, and another to calculate the effects of other income (second job, spouse's job). The bottom number in each worksheet is used to fill out two if the lines in the main W4 form. The main form is filed with the employer, and the worksheets are discarded or held by the employee.

  5. Timeline of mathematics - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_mathematics

    This is a timeline of pure and applied mathematics history.It is divided here into three stages, corresponding to stages in the development of mathematical notation: a "rhetorical" stage in which calculations are described purely by words, a "syncopated" stage in which quantities and common algebraic operations are beginning to be represented by symbolic abbreviations, and finally a "symbolic ...

  6. Timeline of numerals and arithmetic - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_numerals_and...

    c. 3100 BC — Egypt, earliest known decimal system allows indefinite counting by way of introducing new symbols, . [ citation needed ] c. 2800 BC — Indus Valley civilization on the Indian subcontinent , earliest use of decimal ratios in a uniform system of ancient weights and measures , the smallest unit of measurement used is 1.704 ...

  7. Ray - Wikipedia

    en.wikipedia.org/wiki/Ray

    Half-line (geometry) or ray, half of a line split at an initial point Directed half-line or ray, half of a directed or oriented line split at an initial point; Ray (graph theory), an infinite sequence of vertices such that each vertex appears at most once in the sequence and each two consecutive vertices in the sequence are the two endpoints of an edge in the graph

  8. Harry Grindell Matthews - Wikipedia

    en.wikipedia.org/wiki/Harry_Grindell_Matthews

    Harry Grindell Matthews Matthews in 1924 Born (1880-03-17) 17 March 1880 Winterbourne, Gloucestershire, England Died 11 September 1941 (1941-09-11) (aged 61) Tor Clawdd, Rhydypandy (Swansea), Wales Education Merchant Venturer's School Occupation Inventor Spouse Ganna Walska (m. 1938–1941; his death) Harry Grindell Matthews (17 March 1880 – 11 September 1941) was an English inventor who ...

  9. Chronology of computation of π - Wikipedia

    en.wikipedia.org/wiki/Chronology_of_computation...

    The last 100 decimal digits of the latest world record computation are: [1] 7034341087 5351110672 0525610978 1945263024 9604509887 5683914937 4658179610 2004394122 9823988073 3622511852 Graph showing how the record precision of numerical approximations to pi measured in decimal places (depicted on a logarithmic scale), evolved in human history.

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