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 > > > > -- > > 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. > > > > >
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