home.md

@@ -35,6 +35,10 @@ this method allows to correct the postion easily.
 _How to correct the position?_
 
 We have to work the array where the trajectory was saved as numpy array `traj_array = np.array(trajectories)`. Each column of the array correspond to a joint of the selected arm, this way, if change a column by  using `traj_array[:,i] = X`, it can correct the trajectory.   
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+To save the trajectories we recorded we make use of the module numpy `np.savetxt('name_document', array, fmt='f')`
+.
+and recall the file using `np.loadtxt('name_document', dtype=float)`.