diff --git a/Agent_random.md b/Agent_random.md
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+
+
+```
+import random
+import numpy as np
+import pandas as pd
+```
+
+
+```
+random.seed(40)
+
+```
+
+
+```
+#simple payoff matrix
+payoff_a = [(1,-1),(-2,2)]
+payoff_b = [(-1, 1),(2,-2)]
+```
+
+
+```
+class Agent:
+    def __init__(O, payoff, name="agent"):
+        O.payoff = payoff
+        O.allmove = []
+        #O.tirage = []
+    def move(O):
+        pass
+        #a=np.random.randint(0,1)
+        #O.tirage.append(a)
+        #return a
+    def take(O,a,b):
+        #m=O.move()
+        O.allmove.append(O.payoff[a][b])
+        
+    
+    def set_move(O,strat):
+        O.move=strat
+```
+
+
+```
+def at_random():
+    if random.random()>0.5: a=1
+    else: a=0
+    return a
+```
+
+
+```
+def weight_random():
+    if random.random()>0.6666666666666666 : a=1
+    else: a=0
+    return a
+```
+
+
+```
+a=Agent([(1,-1),(-2,2)], "A")
+b=Agent([(-1, 1),(2,-2)],"B")
+a.set_move(at_random)
+b.set_move(at_random)
+
+for i in range(0,30000):
+    #a.move()
+    m_a,m_b = a.move(),b.move()
+    a.take(m_a,m_b)
+    b.take(m_a,m_b)
+    
+_=plot(np.cumsum(a.allmove))
+_=plot(np.cumsum(b.allmove))
+```
+
+
+![png](output_6_0.png)
+
+
+
+```
+a=Agent([(1,-1),(-2,2)], "A")
+b=Agent([(-1, 1),(2,-2)],"B")
+a.set_move( lambda :  0)
+b.set_move(lambda :  1)
+
+for i in range(0,30000):
+    #a.move()
+    m_a,m_b = a.move(),b.move()
+    a.take(m_a,m_b)
+    b.take(m_a,m_b)
+    
+_=plot(np.cumsum(a.allmove),color="b")
+_=plot(np.cumsum(b.allmove),color="r")
+
+```
+
+
+![png](output_7_0.png)
+
+
+
+```
+a=Agent([(1,-1),(-2,2)], "A")
+b=Agent([(-1, 1),(2,-2)],"B")
+a.set_move( weight_random)
+b.set_move(at_random)
+
+for i in range(0,30000):
+    #a.move()
+    m_a,m_b = a.move(),b.move()
+    a.take(m_a,m_b)
+    b.take(m_a,m_b)
+    
+_=plot(np.cumsum(a.allmove),color="b")
+_=plot(np.cumsum(b.allmove),color="r")
+#a.move()
+```
+
+
+
+
+    0
+
+
+
+
+![png](output_8_1.png)
+
+
+
+```
+figsize(16,9)
+
+for i in range(300):
+    a=Agent([(1,-1),(-2,2)], "A")
+    b=Agent([(-1, 1),(2,-2)],"B")
+    a.set_move( weight_random)
+    b.set_move(at_random)
+
+    for i in range(0,3000):
+        #a.move()
+        m_a,m_b = a.move(),b.move()
+        a.take(m_a,m_b)
+        b.take(m_a,m_b)
+    
+    _=plot(np.cumsum(a.allmove), color='r',alpha=0.01)
+    _=plot(np.cumsum(b.allmove),color='b', alpha=0.01)
+    
+```
+
+
+![png](output_9_0.png)
+
+
+
+```
+figsize(16,9)
+for i in range(300):
+    a=Agent([(1,-1),(-2,2)], "A")
+    b=Agent([(-1, 1),(2,-2)],"B")
+    a.set_move( at_random)
+    b.set_move(at_random)
+
+    for i in range(0,3000):
+        #a.move()
+        m_a,m_b = a.move(),b.move()
+        a.take(m_a,m_b)
+        b.take(m_a,m_b)
+    
+    _=plot(np.cumsum(a.allmove), alpha=0.01, color='r')
+    _=plot(np.cumsum(b.allmove), alpha=0.01, color='b')
+    
+```
+
+
+![png](output_10_0.png)
+
+
+
+```
+
+```
diff --git a/README.md b/README.md
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+test du rendering vi jupyter/ipython
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