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  2. Plus and minus signs - Wikipedia

    en.wikipedia.org/wiki/Plus_and_minus_signs

    The plus sign sometimes represents /ɨ/ in the orthography of Huichol. [25] In the algebraic notation used to record games of chess, the plus sign + is used to denote a move that puts the opponent into check, while a double plus ++ is sometimes used to denote double check. Combinations of the plus and minus signs are used to evaluate a move ...

  3. Prehn's sign - Wikipedia

    en.wikipedia.org/wiki/Prehn's_sign

    According to Prehn's sign, the physical lifting of the testicles relieves the pain of epididymitis but not pain caused by testicular torsion. [ 4 ] Negative Prehn's sign indicates no pain relief with lifting the affected testicle, which points towards testicular torsion which is a surgical emergency and must be relieved within 6 hours.

  4. List of gestures - Wikipedia

    en.wikipedia.org/wiki/List_of_gestures

    The sign is derived from South Korea, featured in popular K-pop group Twice (group)'s song called TT (song) and its corresponding dance. T-sign: Made by holding one hand vertically and tapping the fingertips with the palm of the other hand held horizontally such that the two hands form the shape of the letter T.

  5. Negative number - Wikipedia

    en.wikipedia.org/wiki/Negative_number

    These rules lead to another (equivalent) rule—the sign of any product a × b depends on the sign of a as follows: if a is positive, then the sign of a × b is the same as the sign of b, and; if a is negative, then the sign of a × b is the opposite of the sign of b.

  6. Phren - Wikipedia

    en.wikipedia.org/wiki/Phren

    Phren, however, is not exclusively applied to humans. In Empedocles' system, Phren is a general psychological agent to which moral blame and praise can be extended, [4] that darts through the universe as effluences, steers and controls the cosmos in the process and is the measure of what is harmonious and what is fit to exist. [5]

  7. Sign (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Sign_(mathematics)

    In addition to the sign of a real number, the word sign is also used in various related ways throughout mathematics and other sciences: Words up to sign mean that, for a quantity q, it is known that either q = Q or q = −Q for certain Q. It is often expressed as q = ±Q. For real numbers, it means that only the absolute value |q| of the ...

  8. Pegon script - Wikipedia

    en.wikipedia.org/wiki/Pegon_script

    Pegon (Javanese and Sundanese: اَكسارا ڤَيڮَون ‎, Aksara Pégon; also known as اَبجَد ڤَيڮَون ‎, Abjad Pégon, Madurese: أبجاْد ڤَيگو, Abjâd Pèghu) [3] is a modified Arabic script used to write the Javanese, Sundanese, and Madurese languages, as an alternative to the Latin script or the Javanese script [4] and the Old Sundanese script. [5]

  9. Phrenology - Wikipedia

    en.wikipedia.org/wiki/Phrenology

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