text: from math import pi
  
  t = 0.01 #Thickness of a fin
  R2 = 0.08 #External radius
  R1 = 0.04 #Internal radius
  e = 9.1 #Efectivennes
  h = 550 #COnvection coefficient
  
  #COMPUTING THE PROBLEM
  
  Acb = (2*pi*R1)*t #Area contact base
  Af = (2*pi*R2*t) + 2*(pi*(R2**2-R1**2)) #Area of the fins
  
  n = (e*Acb)/(Af) #Compujting the efficiency
  print("Eficiencia = {}".format(n)) #Print the solution
  
  R2c = R2+(t/2) #Computing R2c
  L = R2-R1 #Computing L
  Lc = L+(t/2) #Computing Lc
  Ap = Lc*t #Computing Ap
  ratio = R2c/R1
  print("Ratio = {}".format(ratio))
  
  x = 0.8 #This is an appx value for the X-Axis looking at the tables
  k = (Lc**3/x**2)*(h/Ap) #Solving the value of k
  print("k = {}".format(k)) #Print the solution
  