Make _number_field_from_algebraics() return a dynamical system

[oliviaschwager]

The current function for dynamical system inherits from schemeMorphism_polynomial and doesn't return a dynamical system object.

P.<x,y>=ProjectiveSpace(QQbar,1)
f=DynamicalSystem_projective([x^2 + QQbar(sqrt(2))*y^2, y^2])
f._number_field_from_algebraics()

Component: dynamics

Keywords: SI2019

Author: Jasmine Camero, Olivia Schwager

Branch/Commit: f9db110

Reviewer: Ben Hutz

Issue created by migration from https://trac.sagemath.org/ticket/28161

[jasminecamero]

Branch: u/gh-jasminecamero/master

[sagetrac-git]

Branch pushed to git repo; I updated commit sha1. New commits:

6c9c01f

28161: from_algebraics return ds

[sagetrac-git]

Commit: 6c9c01f

[sagetrac-git]

Changed commit from 6c9c01f to b33de77

[sagetrac-git]

Branch pushed to git repo; I updated commit sha1. New commits:

b33de77

28161 returns ds

[bhutz]

Changed branch from u/gh-jasminecamero/master to u/bhutz/master

[bhutz]

Changed branch from u/bhutz/master to u/bhutz/28161

[bhutz]

Reviewer: Ben Hutz

[bhutz]

Changed commit from b33de77 to f9db110

[bhutz]

comment:6

This looks fine to me. I updated the docs though. So if that update is fine with you, go ahead and mark this positive.

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New commits:

5a75f00	Merge branch 8.9.beta2 into t/28161/master
f9db110	28161: update docs

[vbraun]

Changed branch from u/bhutz/28161 to f9db110