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  2. Vietnamese Quoted-Readable - Wikipedia

    en.wikipedia.org/wiki/Vietnamese_Quoted-Readable

    VIQR uses DD or Dd for the Vietnamese letter Đ, and dd for the Vietnamese letter đ.To type certain punctuation marks (namely, the period, question mark, apostrophe, forward slash, opening parenthesis, or tilde) directly after most Vietnamese words, a backslash (\) must be typed directly before the punctuation mark, functioning as an escape character, so that it will not be interpreted as a ...

  3. EPC QR code - Wikipedia

    en.wikipedia.org/wiki/EPC_QR_code

    These QR code can be recognised thanks to the words "Zahlen mit Code" (Pay with Code) on the right. [ 6 ] These guidelines were later on used in Finland in 2015, [ 7 ] Germany in 2015 [ 8 ] and the Netherlands [ 9 ] in 2016.

  4. Google Authenticator - Wikipedia

    en.wikipedia.org/wiki/Google_Authenticator

    Google Authenticator is a software-based authenticator by Google.It implements multi-factor authentication services using the time-based one-time password (TOTP; specified in RFC 6238) and HMAC-based one-time password (HOTP; specified in RFC 4226), for authenticating users of software applications.

  5. Faster Payment System - Wikipedia

    en.wikipedia.org/wiki/Faster_Payment_System

    Faster Payment System (FPS; Chinese: 快速支付系統, more commonly known as 轉數快) is a real-time gross settlement [1] payment system in Hong Kong that connects traditional banks and electronic payment and digital wallet operators. [2]

  6. Graph isomorphism problem - Wikipedia

    en.wikipedia.org/wiki/Graph_isomorphism_problem

    As is common for complexity classes within the polynomial time hierarchy, a problem is called GI-hard if there is a polynomial-time Turing reduction from any problem in GI to that problem, i.e., a polynomial-time solution to a GI-hard problem would yield a polynomial-time solution to the graph isomorphism problem (and so all problems in GI).