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  2. Ø - Wikipedia

    en.wikipedia.org/wiki/Ø

    The "∅" symbol is always drawn as a slashed circle, whereas in most typefaces the letter "Ø" is a slashed ellipse. The diameter symbol ( ⌀ ) (Unicode character U+2300) is similar to the lowercase letter ø, and in some typefaces it even uses the same glyph , although in many others the glyphs are subtly distinguishable (normally, the ...

  3. No symbol - Wikipedia

    en.wikipedia.org/wiki/No_symbol

    The general prohibition sign, [1] also known informally as the no symbol, 'do not' sign, circle-backslash symbol, nay, interdictory circle, prohibited symbol, don't do it symbol, or universal no, is a red circle with a 45-degree diagonal line inside the circle from upper-left to lower-right. It is typically overlaid on a pictogram to warn that ...

  4. List of typographical symbols and punctuation marks - Wikipedia

    en.wikipedia.org/wiki/List_of_typographical...

    Slashed zero; empty set " Ditto mark: Quotation mark: ÷: Division sign: Slash (Solidus) (/), Obelus Dotted circle (Used as a generic placeholder when describing diacritics) Combining Diacritical Marks ⹀ ⸗ Double hyphen: Almost equal to … Ellipsis = Equals sign ℮ Estimated sign! Exclamation mark: Inverted exclamation mark, Interrobang ...

  5. List of logic symbols - Wikipedia

    en.wikipedia.org/wiki/List_of_logic_symbols

    definition: is defined as metalanguage:= means "from now on, is defined to be another name for ." This is a statement in the metalanguage, not the object language. The notation may occasionally be seen in physics, meaning the same as :=.

  6. Glossary of mathematical symbols - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_mathematical...

    3. Between two groups, may mean that the first one is a proper subgroup of the second one. > (greater-than sign) 1. Strict inequality between two numbers; means and is read as "greater than". 2. Commonly used for denoting any strict order. 3. Between two groups, may mean that the second one is a proper subgroup of the first one. ≤ 1.

  7. Circle symbol - Wikipedia

    en.wikipedia.org/wiki/Circle_symbol

    Circle symbol may refer to (in ascending order of size, approximately): ˚, ring diacritic , white bullet ∘, function composition °, degree symbol º, masculine ordinal indicator

  8. Slashed zero - Wikipedia

    en.wikipedia.org/wiki/Slashed_zero

    The dotted or slashed zero 0̷ is a representation of the Arabic digit "0" (zero) with a slash or a dot through it. This variant zero glyph is often used to distinguish the digit "zero" ("0") from the Latin script letter " O " anywhere that the distinction needs emphasis, particularly in encoding systems, scientific and engineering applications ...

  9. List of musical symbols - Wikipedia

    en.wikipedia.org/wiki/List_of_musical_symbols

    Musical symbols are marks and symbols in musical notation that indicate various aspects of how a piece of music is to be performed. There are symbols to communicate information about many musical elements, including pitch, duration, dynamics, or articulation of musical notes; tempo, metre, form (e.g., whether sections are repeated), and details about specific playing techniques (e.g., which ...