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Viktor Sundelin
Viktor Sundelin
Last Activity: Sep 27 '10, 10:29 AM
Joined: Sep 25 '10
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  • Viktor Sundelin
    replied to derivative and newton raphson
    in Python
    Need help with derivative + solve

    Hello!
    (Newton-Raphson Method)
    Can anyone describe how this code work?
    What is depth, and how is solve working?
    The function derivative only give us the derivative of a function:
    for example:
    Code:
    >>> derivative(math.sin, math.pi, 0.0001)
-0.9999999983354435
    But how is solve work?
    solve use derivative function....
    See more | Go to post

      Leave a comment:

    • Viktor Sundelin
      started a topic derivative of Newton-raphson
      in Python

      derivative of Newton-raphson

      Hello!
      I can't get this code to work, what is wrong?


      If I type:
      Code:
      >>>derivative(math.sin, math.pi, 0.0001)
      Shouldn't I get a value in return?
      This is the error massage:

      TypeError: 'float' object is not callable

      This is the function definition: ->
      Code:
      def derivative (f,x,h):
    import math
    return float(1/(2*h)) * (f(x+h) - f(x-h))
      See more | Go to post
      Last edited by bvdet; Sep 25 '10, 04:31 PM. Reason: Fix code tags, indentation
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