A tiny change for running easily

Readme.md

@@ -0,0 +1,12 @@
+# Requirements
+
+This solutions are implemented in python 2.7 with the following libraries
+
+numpy, IPython, bfc(in this repo.)
+
+...> sudo apt-get instal numpy ipython
+
+# Some minor changes
+
+hw2.py cant open class Binomial. so i added import line for this class.
+Also, onePeriodPrice is not recognized well in hw2.py and in bfc/binomial.py, i declared explicitly in those files.

bfc/binomial.py

@@ -5,6 +5,9 @@
 ---------------------
 
 '''
+import numpy as np
+from pfv import  * # onePeriodPrice
+from math import exp, sqrt
 
 class Binomial:
     '''

hw2.py

@@ -3,6 +3,9 @@
 ==========
 '''
 from bfc import *
+from bfc.binomial import Binomial
+from bfc.pfv import onePeriodPrice
+import numpy as np
 
 def calcAmericanCall(sel):
         for i in range(sel.n,0,-1):
@@ -23,19 +26,19 @@ def calcAmericanCall(sel):
 
 if __name__ == '__main__':
     q = Binomial()
-    
+
     q.setFromBS(0.25,0.02,15,0.01,0.3,100,110,'american','call')
     #print "Q1: option price: {0:4}".format(q.calcOptionPrice())
 
     q2 = q
     q2.type[1]='put'
     print "Q2: option price: {0:4}".format(q2.calcOptionPrice())
-    
+
     q6 = q
     q6.setFromBS(0.25,0.02,15,0.01,0.3,100,110,'american','call')
     q6.n = 10
     print "Q6: option price: {0:4}".format(calcAmericanCall(q6))
-    
+
     q8a = Binomial()
     q8a.setFromBS(0.25,0.02,15,0.01,0.3,100,100,'european','call')
     q8b = Binomial()
@@ -59,4 +62,3 @@ def calcAmericanCall(sel):
             Cf = [onePeriodPrice(Cf[j],Cf[j+1],q8a.q,(q8a.R-1)) \
                        for j in range(0,i)]
     print Cf
-