--> //initializations

--> q=0.02 //ml/sec (Discharge)
 q  = 

   0.02


--> R=300 //m (Radius of influence)
 R  = 

   300.


--> r=0.3 //m (Radius of well)
 r  = 

   0.3


--> b=5 //m (thickness)
 b  = 

   5.


--> D=10 //m (Height of water)
 D  = 

   10.


--> h=8 //m (Pumping dropped)
 h  = 

   8.


--> //calculations

--> k=(q*log(R/r))/(2*%pi*b*(D-h)) //(coefficient of permeability)
 k  = 

   0.0021988


--> //results

--> printf('coefficient of permeability=%f',k) //m/sec
coefficient of permeability=0.002199