MATLAB - Random Number Generation

Hi.

Basically I want to generate four random numbers in a certain interval, and they can't be equal (unlikely to happen, but just incase!).

So let's imagine, that, for example, that interval is [0.5,1]. I want to generate a number in that interval, use it in a calculation, then generate another number on that interval, and use that in the same calculation, etc.

So:

Code:

`a1 = some number in [0.5,1]`

operation on a1

a2 = some number in [0.5,1] not equal to a1

operation on a2

a3= some number in [0.5,1] not equal to a1 or a2

operation on a3

a4 = some number in [0.5,1] not equal to a1 or a2 or a3

operation on a4

I know that the 'rand' command generates a number on the interval [0 1]. Hrm. But I can't find any way to use that to meet my end.