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based on an earlier version of the Wolfram Language.
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PreDecrement (--)DivideBy (/=)

TimesBy

FilledSmallSquarex *= c multiplies x by c and returns the new value of x.

FilledSmallSquareTimesBy has the attribute HoldFirst.

FilledSmallSquarex *= c is equivalent to x = x*c.

FilledSmallSquare See The Mathematica Book: Section 2.4.4.

FilledSmallSquare See also: DivideBy, AddTo, Set.

Further Examples

PreDecrement (--)DivideBy (/=)