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Mth Order Piecewise Spline Interpolation

version 1.2.0.0 (52 KB) by Husam Aldahiyat
A GUI that plots and gives equations for variable order intermediate splines.

7 Downloads

Updated 12 Sep 2012

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GSP is a graphical user interface which takes x and y points as inputs, along with the order m, then outputs mth order splines between each of the x points. In most cases additional constraints are to be entered as well.

Example:

Input:

x points : [1 2 3 4]
y points : [2 7 -1 5]
Order : 2
*One Additional Constraint is Required*
f '' (1) = 0

Output:

Polynomials:
0 5 -3
-13 57 -55
27 -183 305

In the Range:
1 2
2 3
3 4

This means the following:

for 1 < x < 2 y = 0*x^2 + 5*x - 3
for 2 < x < 3 y = -13*x^2 + 57*x - 55
for 3 < x < 4 y = 27*x^2 - 183*x + 305

Cite As

Husam Aldahiyat (2021). Mth Order Piecewise Spline Interpolation (https://www.mathworks.com/matlabcentral/fileexchange/22912-mth-order-piecewise-spline-interpolation), MATLAB Central File Exchange. Retrieved .

Comments and Ratings (6)

Arianto Liang

Thaer Alsous

Oday

Husam Aldahiyat

Yes, manually put (paste) the points in the x and y edit boxes.

Jon Griffiths

Could the author clarify how to enter data points?
Or is it intended to do this manually!

badr Higab

great code

MATLAB Release Compatibility
Created with R2012b
Compatible with any release
Platform Compatibility
Windows macOS Linux
Acknowledgements

Inspired by: MATLAB Earthquake

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