import decimal
import numpy as np

from decimal import *
getcontext().prec = 100

tot = Decimal ('0')
x = Decimal ('1')
y = Decimal ('1') / Decimal (x) / Decimal ('2')
tot = Decimal (tot) + Decimal (y)
print (x, y)

x = Decimal ('1.1')
y = Decimal ('1') / Decimal (x)
tot = Decimal (tot) + Decimal (y)
print (x, y)

x = Decimal ('1.2')
y = Decimal ('1') / Decimal (x)
tot = Decimal (tot) + Decimal (y)
print (x, y)

x = Decimal ('1.3')
y = Decimal ('1') / Decimal (x)
tot = Decimal (tot) + Decimal (y)
print (x, y)

x = Decimal ('1.4')
y = Decimal ('1') / Decimal (x)
tot = Decimal (tot) + Decimal (y)
print (x, y)

x = Decimal ('1.5')
y = Decimal ('1') / Decimal (x)
tot = Decimal (tot) + Decimal (y)
print (x, y)

x = Decimal ('1.6')
y = Decimal ('1') / Decimal (x)
tot = Decimal (tot) + Decimal (y)
print (x, y)

x = Decimal ('1.7')
y = Decimal ('1') / Decimal (x)
tot = Decimal (tot) + Decimal (y)
print (x, y)

x = Decimal ('1.8')
y = Decimal ('1') / Decimal (x)
tot = Decimal (tot) + Decimal (y)
print (x, y)

x = Decimal ('1.9')
y = Decimal ('1') / Decimal (x)
tot = Decimal (tot) + Decimal (y)
print (x, y)

x = Decimal ('2')
y = Decimal ('1') / Decimal (x) / Decimal ('2')
tot = Decimal (tot) + Decimal (y)
print (x, y)

tot = Decimal (tot) / Decimal ('10')
print (tot)

precies = Decimal (np.log (2))
print (precies)

fout = Decimal ('100') * (Decimal (tot) / Decimal (precies) - Decimal ('1'))
print (fout)

term1 = Decimal ('1') / Decimal ('1600')
tot = Decimal (tot) - Decimal (term1)
print (term1)
print (tot)

fout = Decimal ('100') * (Decimal (tot) / Decimal (precies) - Decimal ('1'))
print (fout)

term2 = Decimal ('-1') / Decimal ('1280000')
tot = Decimal (tot) - Decimal (term2)
print (term2)
print (tot)

fout = Decimal ('100') * (Decimal (tot) / Decimal (precies) - Decimal ('1'))
print (fout)