title: Can I generate an array with both negative and positive numbers and specify the limits and the dimension of this array?
body: <p><code>c=np.random.rand(10,2)</code> generates an array of random numbers from in <code>[0,1)</code>. Can I generate the same array (in terms of size) but with negative AND positive numbers? Moreover, can I choose the limits and the dimension of this array? for example if I want from -2 to 2. </p>