Quadratic Spline Interpolation

Version 1.2.0.0 (6.29 KB) by Ahmed Mekkawy
This MATLAB Code provides quadratic spline interpolation for a set of data points.
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Updated 25 Apr 2015

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Quadratic Spline Interpolation with first linear spline is provided by this code.
In the first two lines the user has to insert data points (x), (y) and then execute the program.
The output of this code is the coefficients of quadratic equation in a vector (Coeff) sorted by [a1;b1;c1;a2;b2;c2.....,an;bn;cn].
A plot is generated contains the interpolated data in red circles, quadratic splines.

Cite As

Ahmed Mekkawy (2026). Quadratic Spline Interpolation (https://www.mathworks.com/matlabcentral/fileexchange/50622-quadratic-spline-interpolation), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2010a
Compatible with any release
Platform Compatibility
Windows macOS Linux
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Version Published Release Notes
1.2.0.0

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1.1.0.0

Added image for exponential input interpolation.
1.0.0.0