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3. Newton's Divided Difference Interpolation formula example ( Enter your problem )
  1. Formula & Example-1 (table data)
  2. Example-2 (table data)
  3. Example-3 (`f(x)=x^3-x+1`)
  4. Example-4 (`f(x)=2x^3-4x+1`)
Other related methods
  1. Newton's Forward Difference Interpolation formula
  2. Newton's Backward Difference Interpolation formula
  3. Newton's Divided Difference Interpolation formula
  4. Lagrange's Interpolation formula
  5. Lagrange's Inverse Interpolation formula
  6. Gauss Forward Interpolation formula
  7. Gauss Backward Interpolation formula
  8. Stirling's Interpolation formula
  9. Bessel's Interpolation formula
  10. Everett's Interpolation formula
  11. Hermite's Interpolation formula
  12. Missing terms in interpolation table

1. Formula & Example-1 (table data)
(Previous example)
3. Example-3 (`f(x)=x^3-x+1`)
(Next example)

2. Example-2 (table data)





2. Find Solution using Newton's Divided Difference Interpolation formula
xf(x)
20.69315
2.50.91629
31.09861

x = 2.7


Solution:
The value of table for `x` and `y`

x22.53
y0.69320.91631.0986

Numerical divided differences method to find solution

Newton's divided difference table is
xy`1^(st)` order`2^(nd)` order
20.6932
`(0.9163-0.6932)/(2.5-2)=0.4463`
2.50.9163`(0.3646-0.4463)/(3-2)=-0.0816`
`(1.0986-0.9163)/(3-2.5)=0.3646`
31.0986


The value of `x` at you want to find the `f(x) : x = 2.7`

Newton's divided difference interpolation formula is
`f(x)=y_0 +(x-x_0) f[x_0, x_1]+(x-x_0)(x-x_1) f[x_0, x_1, x_2]`

`y(2.7) = 0.6932 + (2.7 -2) xx 0.4463 + (2.7 -2)(2.7 -2.5) xx -0.0816`

`y(2.7) = 0.6932 + (0.7) xx 0.4463 + (0.7)(0.2) xx -0.0816`

`y(2.7) = 0.6932 +0.3124 -0.0114`

`y(2.7) = 0.9941`


Solution of divided difference interpolation method `y(2.7) = 0.9941`




This material is intended as a summary. Use your textbook for detail explanation.
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1. Formula & Example-1 (table data)
(Previous example)
3. Example-3 (`f(x)=x^3-x+1`)
(Next example)





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