RootList Command

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RootList( <List> )
Converts a given list of numbers {a1,a2,...,an} to a list of points {(a1,0),(a2,0),...,(an,0)}, which is also displayed in the Menu view graphics.svg Graphics View.
Example:
Command RootList({3, 4, 5, 2, 1, 3}) returns the list of points list1={(3,0), (4,0), (5,0), (2,0), (1,0), (3,0)}
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