test if an expression is a member of a MultiSet
member( x, M )
x in M
MultiSet; a MultiSet
anything, an expression
member( x, M ) returns true if x is a member of the MultiSet M, false otherwise
Note: member( x, M ) is equivalent to evalb( x in M ) and also equivalent to evalb( M[x] <> 0 ).
Note: As a MultiSet is unordered, attempting to use the three-argument form of the member command, as in member( x, M, 'k' ) will result in an error.
Error, index of member is undefined
The MultiSet/member command was introduced in Maple 2016.
For more information on Maple 2016 changes, see Updates in Maple 2016.
Download Help Document
What kind of issue would you like to report? (Optional)