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  2. Greater-than sign - Wikipedia

    en.wikipedia.org/wiki/Greater-than_sign

    The greater-than sign is a mathematical symbol that denotes an inequality between two values. The widely adopted form of two equal-length strokes connecting in an acute angle at the right, >, has been found in documents dated as far back as 1631. [1]

  3. Fraction - Wikipedia

    en.wikipedia.org/wiki/Fraction

    Unit fractions can also be expressed using negative exponents, as in 2 −1, which represents 1/2, and 22, which represents 1/(2 2) or 1/4. A dyadic fraction is a common fraction in which the denominator is a power of two , e.g. ⁠ 1 / 8 ⁠ = ⁠ 1 / 2 3 ⁠ .

  4. Section sign - Wikipedia

    en.wikipedia.org/wiki/Section_sign

    [5] [6] When duplicated, as §§, it is read as the plural "sections". For example, "§§ 13–21" would be read as "sections 13 through 21", much as pp. (pages) is the plural of p., meaning page. It may also be used with footnotes when asterisk *, dagger †, and double dagger ‡ have already been used on a given page.

  5. Plus and minus signs - Wikipedia

    en.wikipedia.org/wiki/Plus_and_minus_signs

    The subtraction operator: a binary operator to indicate the operation of subtraction, as in 5 − 3 = 2. Subtraction is the inverse of addition. [1] The function whose value for any real or complex argument is the additive inverse of that argument. For example, if x = 3, then −x = −3, but if x = −3, then −x = +3.

  6. Ampersand - Wikipedia

    en.wikipedia.org/wiki/Ampersand

    In Raku (formerly known as Perl 6), the ampersand sigil is only used when referring to a subroutine as an object, never when calling it [35] In MASM 80x86 Assembly Language, & is the Substitution Operator, which tells the assembler to replace a macro parameter or text macro name with its actual value.

  7. Equals sign - Wikipedia

    en.wikipedia.org/wiki/Equals_sign

    The first use of an equals sign, equivalent to 14x+15=71 in modern notation.From The Whetstone of Witte (1557) by Robert Recorde. Recorde's introduction of "=" Before the 16th century, there was no common symbol for equality, and equality was usually expressed with a word, such as aequales, aequantur, esgale, faciunt, ghelijck, or gleich, and sometimes by the abbreviated form aeq, or simply æ ...

  8. 3/2 - Wikipedia

    en.wikipedia.org/wiki/3/2

    3/2 may refer to: March 2 (month-day date notation) 3 February (day-month date notation) The fraction one and one half (3 ⁄ 2 = 1 + 1 ⁄ 2), or in decimal form 1.5; Perfect fifth; 3rd Battalion, 2nd Marines; A triple metre time signature; A common aspect ratio (image) Hemiola

  9. Upside-down question and exclamation marks - Wikipedia

    en.wikipedia.org/wiki/Upside-down_question_and...

    Upside-down marks, simple in the era of hand typesetting, were originally recommended by the Real Academia Española (Royal Spanish Academy), in the second edition of the Ortografía de la lengua castellana (Orthography of the Castilian language) in 1754 [3] recommending it as the symbol indicating the beginning of a question in written Spanish—e.g. "¿Cuántos años tienes?"