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  2. Approximations of π - Wikipedia

    en.wikipedia.org/wiki/Approximations_of_π

    The latter fraction is the best possible rational approximation of π using fewer than five decimal digits in the numerator and denominator. Zu Chongzhi's results surpass the accuracy reached in Hellenistic mathematics, and would remain without improvement for close to a millennium.

  3. Day count convention - Wikipedia

    en.wikipedia.org/wiki/Day_count_convention

    Figure representing the amount of the CouponRate to apply in calculating Interest. It is often expressed as "days in the accrual period / days in the year". If Date2 is a coupon payment date, DayCountFactor is zero. DayCountFactor is also known as year fraction, abbreviated YearFrac. Freq The coupon payment frequency.

  4. The Economist Democracy Index - Wikipedia

    en.wikipedia.org/wiki/The_Economist_Democracy_Index

    The Democracy Index published by the Economist Group is an index measuring the quality of democracy across the world. This quantitative and comparative assessment is centrally concerned with democratic rights and democratic institutions.

  5. List of sovereign states by tax revenue to GDP ratio - Wikipedia

    en.wikipedia.org/wiki/List_of_sovereign_states...

    General; Tax avoidance. Repatriation tax avoidance; Tax evasion; Tax resistance; Tax shelter; Debtors' prison; Smuggling; Black market; Unreported employment; Corporate

  6. Hyperinflation - Wikipedia

    en.wikipedia.org/wiki/Hyperinflation

    100 quintillion (10 20) pengő, the largest denomination bill ever issued, Hungary, 1946. 1 sextillion pengő notes were printed, but never issued. Hyperinflation in Venezuela represented by the time it would take for money to lose 90% of its value (301-day rolling average, inverted logarithmic scale)

  7. Cardiac output - Wikipedia

    en.wikipedia.org/wiki/Cardiac_output

    Major factors influencing cardiac output – heart rate and stroke volume, both of which are variable. [1]In cardiac physiology, cardiac output (CO), also known as heart output and often denoted by the symbols , ˙, or ˙, [2] is the volumetric flow rate of the heart's pumping output: that is, the volume of blood being pumped by a single ventricle of the heart, per unit time (usually measured ...

  8. Data General Nova - Wikipedia

    en.wikipedia.org/wiki/Data_General_Nova

    Edson de Castro was the Product Manager of the pioneering Digital Equipment Corporation (DEC) PDP-8, a 12-bit computer widely referred to as the first true minicomputer. [2]

  9. 2020 Nebraska Democratic presidential primary - Wikipedia

    en.wikipedia.org/wiki/2020_Nebraska_Democratic...

    The 2020 Nebraska Democratic presidential primary took place on May 12, 2020, as part of the Democratic Party primaries for the 2020 presidential election.The Nebraska primary was a semi-closed primary and awarded 33 delegates to the 2020 Democratic National Convention, of which 29 were pledged delegates allocated on the basis of the results of the primary, and was the only contest on that date.