minv = -150;maxv = 150;A = (abs(minv)+abs(maxv))*rand(3,4)+minv
A =
137.1501 -107.4341 87.6622 -139.2865
-4.3873 -23.4716 137.8477 104.7388
90.0841 124.7207 46.7222 130.1980
