System-dependent term order for printed expressions

[qed777]

The order in which the terms in some symbolic expressions are printed depends on the platform/system. For example, evaluating cos(x) + zeta(x) yields

• zeta(x) + cos(x) on Linux
• cos(x) + zeta(x) on OS X

in Sage 4.4.4 and 4.5.2.alpha{0,1}, at least.

Please see #9582 for some details and discussion.

Apply: attachment: trac_9632-doctests.patch

CC: @burcin @sagetrac-cwitty @dandrake @jhpalmieri @kcrisman

Component: symbolics

Author: Burcin Erocal

Reviewer: Volker Braun

Merged: sage-5.11.rc0

Issue created by migration from https://trac.sagemath.org/ticket/9632

[burcin]

comment:1

#10282 is a duplicate of this issue.

The patches attached to #9880 fix this.

[kcrisman]

comment:2

#10282 almost certainly is the same thing.

[kcrisman]

comment:3

When this is closed (which would hopefully happen with #9880 integrated), let's be sure to write doctests for both this ticket and #10282, which would just be to say that

sage: psi(1,1/3)*log(3)
log(3)*psi(1, 1/3)

is the same on all systems, in addition to the zeta(x)+cos(x) example here.

[burcin]

Author: Burcin Erocal

[burcin]

comment:4

Attachment: trac_9632-doctests.patch.gz

This was fixed by #9880. attachment: trac_9632-doctests.patch adds doctests.

[vbraun]

Reviewer: Volker Braun

[jdemeyer]

Merged: sage-5.11.rc0