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2. 29 freshly brewed deals to celebrate National Coffee Day - AOL

   www.aol.com/news/29-freshly-brewed-deals...

   On Sept. 29, Aroma Joe’s customers can get a free 20-ounce hot or iced coffee. For every free coffee, the chain will also donate $1 to Make-A-Wish. Additionally, rewards members can get one free ...

3. Coupon collector's problem - Wikipedia

   en.wikipedia.org/wiki/Coupon_collector's_problem

   Coupon collector's problem. In probability theory, the coupon collector's problem refers to mathematical analysis of "collect all coupons and win" contests. It asks the following question: if each box of a given product (e.g., breakfast cereals) contains a coupon, and there are n different types of coupons, what is the probability that more ...

4. What deals you should be shopping at Walmart this week ... - AOL

   www.aol.com/lifestyle/what-deals-you-should-be...

   Walmart deals: 50% off or more In the spirit of the intro to this piece, our appeal this week is all Carote and no stick — just make sure you have these ready for this year's holiday feasts ...

5. Raised-cosine filter - Wikipedia

   en.wikipedia.org/wiki/Raised-cosine_filter

   Mathematical description. The raised-cosine filter is an implementation of a low-pass Nyquist filter, i.e., one that has the property of vestigial symmetry. This means that its spectrum exhibits odd symmetry about , where is the symbol-period of the communications system. Its frequency-domain description is a piecewise -defined function, given ...

6. 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 ...

7. Discount window - Wikipedia

   en.wikipedia.org/wiki/Discount_window

   Discount window. The discount window is an instrument of monetary policy (usually controlled by central banks) that allows eligible institutions to borrow money from the central bank, usually on a short-term basis, to meet temporary shortages of liquidity caused by internal or external disruptions. The interest rate charged on such loans by a ...

8. Romania - Wikipedia

   en.wikipedia.org/wiki/Romania

   Romania is the largest country in Southeastern Europe and the twelfth-largest in Europe, having an area of 238,397 square kilometres (92,046 sq mi). [242]: 17 It lies between latitudes 43° and 49° N and longitudes 20° and 30° E. The terrain is distributed roughly equally between mountains, hills, and plains.

9. Gray code - Wikipedia

   en.wikipedia.org/wiki/Gray_code

   One such type of Gray code is the n-ary Gray code, also known as a non-Boolean Gray code. As the name implies, this type of Gray code uses non-Boolean values in its encodings. For example, a 3-ary Gray code would use the values 0,1,2. [31] The (n, k)-Gray code is the n-ary Gray code with k digits. [63]