unique -- eliminate duplicates from a list

Synopsis

• Usage:

  unique(L)

• Inputs:
  • L, a list, or sequence
• Outputs:
  • M, a list, the elements of L without duplicates

Description

i1 : unique {3,2,1,3,2,4,a,3,2,3,-2,1,2,4}

o1 = {3, 2, 1, 4, a, -2}

o1 : List

i2 : toList set {3,2,1,3,2,4,a,3,2,3,-2,1,2,4}

o2 = {1, 2, 3, 4, -2, a}

o2 : List

See also

• same -- whether everything in a list is the same
• sort -- sort a list or columns of a matrix
• set -- make a set
• tally -- tally the elements of a list, sequence, array, or string
• uniform -- whether all elements of a list are the same class
• lists and sequences -- a detailed overview of lists and sequences in Macaulay2