MATLAB: How can i generate a random number out of a range?

Question

i need to generate a random number out of a range, i did it inside with r=-1+(2).*rand(1,1) %my interval is (-1;1)

how can i do to get a random number that is not in this interval?? i mean, a number which satisfy r<-1 U 1<r

Answer 1

a=rand
out=1/a*sign(a-0.5)

%or for a vector

n=10;
a=rand(1,n);out=1./a.*sign(a-0.5)