+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 > > -- > You received this message because you are subscribed to the Google Groups > "sympy-patches" group. > To post to this group, send email to sympy-patc...@googlegroups.com. > To unsubscribe from this group, send email to > sympy-patches+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/sympy-patches?hl=en. > > -- You received this message because you are subscribed to the Google Groups "sympy-patches" group. To post to this group, send email to sympy-patc...@googlegroups.com. To unsubscribe from this group, send email to sympy-patches+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sympy-patches?hl=en.