Shorting dissimilar Elements from an Array

Suppose I have an array A of elements from 1 to 20 sequentially. Let B = [10 9 2 4 7 16 17 15 11 13]. I need an array C (Assending Order) containing the remaining elements of A i.e which is not in B.

Answer 1

[Matt J]

A=1:20;
B= [10 9 2 4 7 16 17 15 11 13];

C=setdiff(A,B)

C = 1×10

1 3 5 6 8 12 14 18 19 20

[Souarv De]

Thanks You Matt J.