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  2. File:Silver price chart since 2000.svg - Wikipedia

    en.wikipedia.org/wiki/File:Silver_price_chart...

    Silver prices since 2000 until April 2015. Price quotes given in USD per ounce. ... based on www.kitco.com; using price quotes for silver . This W3C-unspecified ...

  3. Producer price index - Wikipedia

    en.wikipedia.org/wiki/Producer_price_index

    A producer price index (PPI) is a price index that measures the average changes in prices received by domestic producers for their output. Formerly known as the wholesale price index between 1902 and 1978, the index is made up of over 16,000 establishments providing approximately 64,000 price quotations that the U.S. Bureau of Labor Statistics (BLS) compiles each month to represent thousands ...

  4. Stock market today: Indexes end lower as tech slips and bond ...

    www.aol.com/stock-market-today-indexes-end...

    Producer prices rose 0.4% in November, higher than consensus estimates of 0.2%. Declines in Nvidia and Adobe stock weighed on the Nasdaq, while bond yields rose.

  5. Pi Day - Wikipedia

    en.wikipedia.org/wiki/Pi_Day

    Pi Day is an annual celebration of the mathematical constant π (pi). Pi Day is observed on March 14 (the 3rd month) since 3, 1, and 4 are the first three significant figures of π, and was first celebrated in the United States. [2] [3] It was founded in 1988 by Larry Shaw, an employee of a science museum in San Francisco, the Exploratorium.

  6. 33 Pi Day deals for a slice of savings on 3.14 - AOL

    www.aol.com/news/32-pi-day-deals-slice-030000872...

    Here are all the best food deals on Pi Day, March 14, on pie, pizza and beyond from Taco Bell, Burger King, DoorDash, Pizza Hut and more chains. 33 Pi Day deals for a slice of savings on 3.14 Skip ...

  7. Profitability index - Wikipedia

    en.wikipedia.org/wiki/Profitability_index

    Profitability index (PI), also known as profit investment ratio (PIR) and value investment ratio (VIR), is the ratio of payoff to investment of a proposed project.It is a useful tool for ranking projects because it allows you to quantify the amount of value created per unit of investment.

  8. Zu Chongzhi - Wikipedia

    en.wikipedia.org/wiki/Zu_Chongzhi

    calculating one year as 365.24281481 days, which is very close to 365.24219878 days as we know today. calculating the number of overlaps between sun and moon as 27.21223, which is very close to 27.21222 as we know today; using this number he successfully predicted an eclipse four times during 23 years (from 436 to 459).

  9. Chudnovsky brothers - Wikipedia

    en.wikipedia.org/wiki/Chudnovsky_brothers

    Today, this algorithm is used by Mathematica to calculate π, and has continued to be used by others who have achieved world records in pi calculation. The brothers also assisted the Metropolitan Museum of Art around 2003 in the merging of a series of digital photographs taken of The Hunt of the Unicorn tapestries during their cleaning. [ 7 ]