DocumentationMathematicaBuilt-in FunctionsProgrammingAssignments
SubtractFrom
x -= dx subtracts dx from x and returns the new value of x.
SubtractFrom has the attribute HoldFirst. x -= dx is equivalent to x = x - dx. See Section 2.5.4. See also: Decrement, PreDecrement, Set. New in Version 1.
Further Examples
x -= dx subtracts dx from x and returns the new value of x. SubtractFrom has the attribute HoldFirst. x -= dx is equivalent to x = x - dx. See Section 2.5.4. See also: Decrement, PreDecrement, Set. New in Version 1.
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