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Feb 25th, 2017
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  1. def secant(n):
  2. def function(x):
  3. f=x-math.cos(x)
  4. return f
  5.  
  6. xold=0.0
  7. xnow=1.0
  8.  
  9. for i in range(n):
  10. xnew=xnow-function(xnow)((xnow-xold)/(function(xnow)-function(xold))
  11. xold=xnow
  12. xnow=xnew
  13. return xnew
  14.  
  15. def main():
  16. print("The root is",secant(10))
  17.  
  18. return
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