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  2. GS1 DataBar Coupon - Wikipedia

    en.wikipedia.org/wiki/GS1_DataBar_Coupon

    GS1 DataBar barcode symbol encoding a GTIN-12 number. GS1 DataBar Stacked Omni-Directional barcode symbol encoding 00123456789012. The GS1 Databar Coupon code has been in use in retail industry since the mid-1980s. At first, it was a UPC with system ID 5. Since UPCs cannot hold more than 12 digits, it required another barcode to hold additional ...

  3. Butterworth filter - Wikipedia

    en.wikipedia.org/wiki/Butterworth_filter

    When viewed on a logarithmic Bode plot, the response slopes off linearly towards negative infinity. A first-order filter's response rolls off at −6 dB per octave (−20 dB per decade) (all first-order lowpass filters have the same normalized frequency response). A second-order filter decreases at −12 dB per octave, a third-order at −18 dB ...

  4. Coupon (finance) - Wikipedia

    en.wikipedia.org/wiki/Coupon_(finance)

    In finance, a coupon is the interest payment received by a bondholder from the date of issuance until the date of maturity of a bond . Coupons are normally described in terms of the "coupon rate", which is calculated by adding the sum of coupons paid per year and dividing it by the bond's face value. For example, if a bond has a face value of ...

  5. Discount rate - Wikipedia

    en.wikipedia.org/wiki/Discount_rate

    Discount rate may refer to: Social discount rate (of consumption), the rate at which the weight given to future consumption decreases in economic models. Pure time preference, or utility discount rate, the rate at which the weight given to future utility decreases in economic models. Annual effective discount rate, an alternative measure of ...