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2. Raised-cosine filter - Wikipedia

   en.wikipedia.org/wiki/Raised-cosine_filter

   The raised-cosine filter is a filter frequently used for pulse-shaping in digital modulation due to its ability to minimise intersymbol interference (ISI). Its name stems from the fact that the non-zero portion of the frequency spectrum of its simplest form (=) is a cosine function, 'raised' up to sit above the (horizontal) axis.

3. QR code - Wikipedia

   en.wikipedia.org/wiki/QR_Code

   The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. [5] [6] [7] The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; [8] the pattern of position detection was found and determined by applying the least-used ratio (1:1:3 ...

4. Price - Wikipedia

   en.wikipedia.org/wiki/Price

   Prices are influenced by production costs, supply of the desired product, and demand for the product. A price may be determined by a monopolist or may be imposed on the firm by market conditions. Price can be quoted in currency, quantities of goods or vouchers. In modern economies, prices are generally expressed in units of some form of currency.

5. 50–40–90 club - Wikipedia

   en.wikipedia.org/wiki/50–40–90_club

   During his second stint with the Phoenix Suns, Steve Nash achieved the 50-40-90 feat in four separate seasons, the most of any player.. The 50–40–90 club is a statistical achievement used to distinguish players as excellent shooters in the National Basketball Association (NBA), NBA G League, Women's National Basketball Association (WNBA), and men's college basketball.

6. Where to find today's best sales: Enjoy $25 for an Amazon ...

   www.aol.com/lifestyle/where-to-find-todays-best...

   Target: Get up to 50% off select home items, 20% off select vacuums and more. Walmart : Get up to 65% off with flash deals on home goods, apparel and more. The reviews quoted above reflect the ...

7. Price elasticity of demand - Wikipedia

   en.wikipedia.org/wiki/Price_elasticity_of_demand

   Since the price elasticity of demand is negative for the vast majority of goods and services (unlike most other elasticities, which take both positive and negative values depending on the good), economists often leave off the word "negative" or the minus sign and refer to the price elasticity of demand as a positive value (i.e., in absolute ...