In [2]:
import numpy as np

In [3]:
np.linspace(1,12,12)


Out[3]:
array([  1.,   2.,   3.,   4.,   5.,   6.,   7.,   8.,   9.,  10.,  11.,
        12.])

In [4]:
x = np.linspace(1,12,12)



for i in np.linspace(1,12,12):
    v11,w11,u11,v12,w12,u12,v21,w21,u21,v22,w22,u22 = x[lt*(i-1):lt*i]


---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-4-f08be563f169> in <module>()
      2 
      3 for i in np.linspace(1,12,12):
----> 4     v11,w11,u11,v12,w12,u12,v21,w21,u21,v22,w22,u22 = x[lt*(i-1):lt*i]

NameError: name 'lt' is not defined

In [ ]: