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Unique

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Unique[]

generates a new symbol and gives a name of the form $number.

Unique[x]

generates a new symbol and gives a name of the form x$number.

Unique[{x, y, ...}]

generates a list of new symbols.

Unique[“xxx”]

generates a new symbol and gives a name of the form xxxnumber.

Create a unique symbol with no particular name:

• • Unique[]

Create a unique symbol whose name begins with x:

• • Unique["x"]