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  2. Mathematical notation - Wikipedia

    en.wikipedia.org/wiki/Mathematical_notation

    [2] In order to have more symbols, and for allowing related mathematical objects to be represented by related symbols, diacritics , subscripts and superscripts are often used. For example, f 1 ′ ^ {\displaystyle {\hat {f'_{1}}}} may denote the Fourier transform of the derivative of a function called f 1 . {\displaystyle f_{1}.}

  3. Glossary of mathematical symbols - Wikipedia

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

    2. Denotes the additive inverse and is read as minus, the negative of, or the opposite of; for example, –2. 3. Also used in place of \ for denoting the set-theoretic complement; see \ in § Set theory. × (multiplication sign) 1. In elementary arithmetic, denotes multiplication, and is read as times; for example, 3 × 2. 2.

  4. FDA orders manufacturers to do a better job detecting bird ...

    www.aol.com/fda-orders-manufacturers-better-job...

    Manufacturers of raw dog and cat food must do a better job detecting bird flu in products sold to pet owners, federal regulators announced Friday.. Several cats, wild and domestic, in the U.S ...