MATLAB: Deleting number

Question

i have values such as A=[12 20 1 5 69 70 21 50 46 52 87 83 11 21]

B=[ 70 50 12 83]

now i want to delete B values from A ,so i will have output as

C=[20 1 5 69 21 46 52 87 11 21 ]

Answer 1

[C1,ic] = setdiff(A,B)
[i1,i1] = sort(ic)
C = C1(i1)

OR

C = A(~ismember(A,B))