[MATH-1648] Derivative computations for BicubicInterpolator's

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Implemented
• Affects Version/s: 4.X
• Fix Version/s: 4.0
• difficulty-level: Easy
• Assignee: Alessandro Moscatelli
• Reporter: Alessandro Moscatelli
• Created: 22/Jul/22 10:49
• Updated: 28/Jul/22 09:53
• Resolved: 28/Jul/22 09:53

Description

Hi there !
I would like to improve the BicubicInterpolator (or the PiecewiseBicubicInterpolator) with the possibility to evaluate x, y, xy derivatives.

In the deprecated BicubicSplineInterpolator it was already possibile.

Before I start writing any lines of code I would like to know the rationale about removing this functionality.
Also, do you have any suggestion or guideline ?

I forked on github, I would like to contibute with a PR.

Thank you in advance

Issue Links

• relates to: MATH-1166 BicubicInterpolation may have a bug