asdas

tr=0.85260550201372549135
def g(x)
  2.0*Math.exp(-x)
end

results=Array.new

eps= 0.00001
x0 = 0.8
x1 = x0+eps*10.0
i = 0
while ((x1-x0).abs>eps) do
  x0 = i==0 ? 0.8 : x1
  x1 = g(x0)
  results[i]= x1
  i +=1
end

#p x1
#p tr-x1
results.length.times{|i|
  puts "#{i}.   #{results[i]}   #{tr-results[i]}"  
}

tr=0.85260550201372549135
def g(x)
  2.0*Math.exp(-x)
end
results=Array.new

eps= 0.00001
x0 = 0.8
x1 = 0
x2 = 0
l2 = 0
x3 = x0+eps*10.0
i = 0
while ((x3-x0).abs>eps  ) do 
  x0=i==0 ? 0.8 : x3
  x1=g(x0)
  x2=g(x1)
  l2=(x2-x1)/(x1-x0)
  x3=x2+l2*(x2-x1)/(1-l2)
  results[i]= x1
  i +=1
end

results.length.times{|i|
  puts "#{i}.   #{results[i]}   #{tr-results[i]}"  
}