I pushed it to the branch fix_latex
ti., 04.05.2010 kl. 15.09 -0700, skrev Ondrej Certik:
> +1, is it in your branch somewhere?
>
> Ondrej
>
> OnMon, May 3, 2010 at 3:32 AM, Øyvind Jensen <jensen.oyv...@gmail.com> wrote:
> > Before: -1^{x}
> > Now: \left(-1\right)^{x}
> >
> > Added a test
> > ---
> > sympy/printing/latex.py | 3 ++-
> > sympy/printing/tests/test_latex.py | 3 +++
> > 2 files changed, 5 insertions(+), 1 deletions(-)
> >
> > diff --git a/sympy/printing/latex.py b/sympy/printing/latex.py
> > index cce22fc..b298be0 100644
> > --- a/sympy/printing/latex.py
> > +++ b/sympy/printing/latex.py
> > @@ -83,7 +83,8 @@ def _needs_brackets(self, expr):
> > printed, False otherwise. For example: a + b => True; a => False;
> > 10 => False; -10 => True.
> > """
> > - return not ((expr.is_Integer and expr.is_nonnegative) or
> > expr.is_Atom)
> > + return not ((expr.is_Integer and expr.is_nonnegative)
> > + or (expr.is_Atom and expr is not S.NegativeOne))
> >
> > def _needs_function_brackets(self, expr):
> > """
> > diff --git a/sympy/printing/tests/test_latex.py
> > b/sympy/printing/tests/test_latex.py
> > index 7afaf28..8fad7ff 100644
> > --- a/sympy/printing/tests/test_latex.py
> > +++ b/sympy/printing/tests/test_latex.py
> > @@ -94,6 +94,9 @@ def test_latex_functions():
> > assert latex(gamma(x)) == r"\operatorname{\Gamma}\left(x\right)"
> > assert latex(Order(x)) == r"\operatorname{\mathcal{O}}\left(x\right)"
> >
> > +def test_latex_brackets():
> > + assert latex((-1)**x) == r"\left(-1\right)^{x}"
> > +
> > def test_latex_derivatives():
> > assert latex(diff(x**3, x, evaluate=False)) == \
> > r"\frac{\partial}{\partial x} x^{3}"
> > --
> > 1.6.5
> >
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> >
>
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