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

### comment:2 follow-up: ↓ 3 Changed 2 years ago by

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

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.

**Note:**See TracTickets for help on using tickets.

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.