https://www.mathworks.com/help/curvefit/getcurve.html
getcurve - Interactive creation of cubic spline curve - MATLAB
This MATLAB function displays a gridded window and asks you for input.
cubic splineinteractivecreationcurvematlab
https://www.mathworks.com/help/curvefit/cubic-spline-interpolation.html
Cubic Spline Interpolation - MATLAB & Simulink
Use cubic splines to interpolate smooth data, choosing knots and smoothness.
cubic splineinterpolationmatlabsimulink
https://www.c-sharpcorner.com/uploadfile/ovp/draw-a-smooth-curve-through-a-set-of-2d-points-with-cubic-spline/
Draw a smooth curve through a set of 2D points with Cubic Spline
Calculate tabulated function cubic spline and approximate comprising polynomials with polylines to use them with drawing primitives.
smooth curve