removing spcific numbers from matrix

Hi

i have very large matrix , i would like to remove specific numbers from matrix

for example

i have matrix A=[1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20];

i want to delete B=[11,18]

finally i want

A=[1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 17 19 20];

just one important point : i have a loop so i want to delete numbers not index and the number that i want to delete it is diffrent in each loop

thank you very much for helping

Answer 1

[dpb]

Don't need (and don't use) loops -- this is MATrix LABoratory, after all! :)

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

or

A=setxor(A,B);

is the more succinct and perhaps(?) a little faster...

[mohammed hussein]

thank you very much