Opened 2 years ago

Last modified 2 years ago

#22055 new enhancement

implement Remez algorithm

Reported by: zimmerma Owned by:
Priority: minor Milestone: sage-7.5
Component: calculus Keywords:
Cc: Merged in:
Authors: Reviewers:
Report Upstream: N/A Work issues:
Branch: Commit:
Dependencies: Stopgaps:

Description

it would be nice to have Remez algorithm implemented in Sage. It provides an optimal approximation of a function by a polynomial of given degree on an interval [a,b]. See https://en.wikipedia.org/wiki/Remez_algorithm.

Change History (3)

comment:1 Changed 2 years ago by mmezzarobba

Hi Paul,

Yes, that would be nice to have. But note that the (experimental) Python-Sollya interface available at https://scm.gforge.inria.fr/anonscm/git/metalibm/pythonsollya.git has (even more experimental) Sage support (on the cythonsollya-mm branch) that you can already use to call Sollya's minimax approximation routines on functions implemented using Sage.

comment:2 follow-up: Changed 2 years ago by zimmerma

Marc, I just did git pull from Sage 7.4, then git branch -r does not show any branch with sollya in it.

Paul

comment:3 in reply to: ↑ 2 Changed 2 years ago by mmezzarobba

Replying to zimmerma:

Marc, I just did git pull from Sage 7.4, then git branch -r does not show any branch with sollya in it.

Sorry if I wasn't clear: *PythonSollya?* has some support for *Sage*, not conversely.

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