how can I fill a matrix with randomly -0.01 and 0.01

I want to fill a matrix with only two diffrent numbers e.g. 0.01 and -0.01.

Answer 1

[Stephen23]

>> V = [0.01,-0.01];
>> V(randi(numel(V),5,5))
ans =
  -0.010000   0.010000  -0.010000   0.010000   0.010000
  -0.010000   0.010000   0.010000   0.010000  -0.010000
  -0.010000  -0.010000   0.010000   0.010000  -0.010000
   0.010000  -0.010000  -0.010000  -0.010000  -0.010000
  -0.010000   0.010000  -0.010000   0.010000  -0.010000

Although you could calculate the values from randi, this method using indexing has the advantage that the values are not calculated but are exactly those values that you define in V.

[Simon Blum]

Thanks Stephen. I tried it the following way, but obviously your solution is much better:

V = (2* randi(2,[5,5]) - 3)/100;