#8694: Improve schemes printing and LaTeXing
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Reporter: novoselt | Owner: AlexGhitza
Type: defect | Status: new
Priority: major | Milestone: sage-4.4
Component: algebraic geometry | Keywords:
Author: Andrey Novoseltsev | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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I am attaching notebook printouts with old and new output in text and
typeset mode.
(In the "before" file typeset versions are for some reason on top of the
last lines of text - this happens only after pressing "Print" button in
the notebook, the usual editable version looks fine.)
Current situation:
* schemes don't have _latex_ methods, so typesetting just outputs the
usual text representation;
* this is not only not very good looking, but actually can be confusing
since polynomials that were on different lines before are now separated
just by a space, which may look like an omitted multiplication.
The patch provides _latex_ methods for pretty yet compact typesetting. In
addition, while working on this I made the following changes to _repr_
methods:
* put commas between polynomials: this may be important even in text mode
if polynomials are long and some of them are printed on several lines;
* replaced (no equations) by (no polynomials) for schemes that do not
have defining polynomials: since the output does not include "=0", this
seems to be more correct;
* compactified printing of quasi-schemes: since both components are
schemes in the same ambient space, there is no need to print it twice.
Apply on top of #8675 and #8682.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8694>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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