Lagrange Interpolation Calculator
Interpolate using Lagrange polynomials
Formula
P(x) = Σ yᵢ Πⱼ≠ᵢ (x-xⱼ)/(xᵢ-xⱼ)
Lagrange polynomial passes through all given data points.
Examples
(1,1),(2,4),(3,9) at x=2.5
P(2.5) = 6.25 (matches x²).
Frequently Asked Questions
About Lagrange Interpolation
Interpolate values using Lagrange polynomial.
Related Calculators
Percentage Calculator
Calculate percentages, increases, and decreases
Use calculator
Fraction Calculator
Add, subtract, multiply, and divide fractions
Use calculator
Average Calculator
Calculate mean, median, and mode of numbers
Use calculator
Standard Deviation Calculator
Find standard deviation of a data set
Use calculator