latex representation of negative coefficients broken

[burcin]

Reported by Mike Witt on sage-support:

sage: latex(t)
\left(2 I\right) \, \pi n x + \left(-2 I\right) \, \pi n

+ (-2 I ) looks really ugly.

Component: symbolics

Keywords: pynac

Author: Burcin Erocal

Reviewer: Karl-Dieter Crisman

Merged: sage-4.6.alpha3

Issue created by migration from https://trac.sagemath.org/ticket/9394

[sagetrac-fwclarke]

comment:1

See recent comments in #8938, where similar phenomena have been noted.

[burcin]

Author: Burcin Erocal

[burcin]

comment:2

Attachment: trac_9394-leading_minus.patch.gz

With the new pynac package at #9901, we have:

sage: var('n')
n
sage: t = 2*I*n*pi*x - 2*I*n*pi
sage: latex(t)
2 i \, \pi n x - 2 i \, \pi n

attachment: trac_9394-leading_minus.patch contains the doctest changes. The fixes in the printing of rational functions (for #9834) are also included in this patch.

The pynac package includes patches for #9834, #9878, #9879, #9881, #9900 as well as this ticket. See the ticket description of #9901 for the list (and order) of patches associated to the new version.

[kcrisman]

Reviewer: Karl-Dieter Crisman

[kcrisman]

comment:3

With #9901, positive review. Do not merge until #9901 has positive review and is merged.

[qed777]

Merged: sage-4.6.alpha3