How to plot a spline

How would I go about building a spline with 4 points then plotting it. And then how do I find its derivative

[Mathieu NOE]

How do I find the derivative of a spline curve in MATLAB 7.9 (R2009b)? - (mathworks.com)

matlab - spline interpolation and its (exact) derivatives - Stack Overflow

Answer 1

[Biral Pradhan]

I understand, you want to plot a spline with 4 points and find its derivative. Kindly follow the following links to resolve your issue.

• https://it.mathworks.com/help/curvefit/how-to-construct-splines.html
• https://it.mathworks.com/help/curvefit/postprocessing.html