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Forward difference newtons formula

  1. Jan 9, 2007 #1
    plz help me to finding out the value of X for forward difference newtons formula i am tryign since 2 weeks but i fails

    where the values of arguments are a1, a1+h, a1+2h, a1+3h
    and there cross ponding values are p,q,r,s respectively
  2. jcsd
  3. Jan 10, 2007 #2
    ques is

    F(a) p f(a) p2 f(a) p3f(a) p4f(a)
    A1+ h p
    A1+ 2h q q-p
    A1+3h r r-q r-q-q+p=r-2q+p
    A1+ 4h s s-r s-r-r+q = s-2r+q s-2r+q –r +2q-p= s- 3r+3q-p

    we find value of a
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