Home > Numerical methods calculators > Numerical Interpolation using Forward, Backward, Divided Difference, Lagrange's method calculator

Method and examples
Numerical interpolation using Hermite's formula
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OR
Rows :
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x =
Option :
  1. Xf(x)f'(x)
    000
    111
    and x=0.1
  2. Xf(x)f'(x)
    20.693150.5
    2.50.916290.4
    31.098610.33333
    and x=2.7
  3. Xf(x)f'(x)
    10.841470.54030
    1.10.891210.4536
    and x=1.05
  4. Xf(x)f'(x)
    31.09860.3333
    3.51.25280.2857
    41.38630.25
    and x=3.2
f(x) =
x1 = and x2 =
x =
Step value (h) =   OR  Inverval (N) =
=
Option :
  1. `f(x)=2x^3-4x+1`
    x1 = 2 and x2 = 4
    x = 3.8
    Step value (h) = 1
    or N = 5
  2. `f(x)=2x^3-4x+1`
    x1 = 2 and x2 = 4
    x = 2.1
    Step value (h) = 1
    or N = 8
  3. `f(x)=x^3-x+1`
    x1 = 2 and x2 = 4
    x = 3.8
    Step value (h) = 1
    or N = 5
  4. `f(x)=x^3-x+1`
    x1 = 2 and x2 = 4
    x = 2.1
    Step value (h) = 1
    or N = 8
  5. `f(x)=x^3+x+2`
    x1 = 2 and x2 = 4
    x = 3.8
    Step value (h) = 1
    or N = 5
  6. `f(x)=x^3+x+2`
    x1 = 2 and x2 = 4
    x = 2.1
    Step value (h) = 1
    or N = 8
  7. `f(x)=sin(x)`
    x1 = 0 and x2 = 1.57
    x = 2
    Step value (h) = 1
    or N = 8
  8. `f(x)=cos(x)`
    x1 = 0 and x2 = 1.57
    x = 2
    Step value (h) = 1
    or N = 8

For next step calucation, use previous value
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