[Scilab-users] Monotone preserving splin

[Pinçon Bruno]

Le 22/04/2017 à 07:23, fujimoto2005 a écrit :
> As for the function "splin", when we set spline_type ="monotone", "splin"
> returns the slope values preserving data monotonicity.
> These slope values are the adjusted ones of the original slope values to
> satisfy some constraints.
> In order to get the original slope values, we need additional information on
> the derivatives of end points such as "not_a_knot", "clamped" and "natural"
> or others.
> I would like to know what conditions are used when spline_type ="monotone".
>
>

   Hello,

   see :

https://en.wikipedia.org/wiki/Monotone_cubic_interpolation

    hth
   Bruno