[O] org-babel pass data between blocks

[Marvin Doyley]

Dear All,

Is there way to pass data between blocks in org-babel. For example lets say 
have two blocks


#+begin_src python
from pylab import *
# Simple carrier
t=linspace(0,1,100);
fc=100;
Ac =1;
C=Ac*cos(2*pi*t);

#+end_src


What I would like to do is to pass both C and t to another python block, but it 
is not clear how to do this.

#+begin_src python 
from pylab import *

fm=1;
Am=1
m=Am*cos(2*pi*t); # message signal

z=m*C;   #double side-band modulated signal

#+end_src



Thanks,
M