Fix latex printing for Integral's with Add

Added test from sympy/sympy#10806
skirpichev · Mar 13, 2016 · 539929a · 539929a
1 parent 417d09f
commit 539929a
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Showing 2 changed files with 3 additions and 2 deletions.
diff --git a/sympy/printing/latex.py b/sympy/printing/latex.py
@@ -583,8 +583,8 @@ def _print_Integral(self, expr):
 
                 symbols.insert(0, r"\, d%s" % self._print(symbol))
 
-        return r"%s %s%s" % (tex,
-            str(self._print(expr.function)), "".join(symbols))
+        tmpl = r"%s \left(%s\right)%s" if expr.function.is_Add else r"%s %s%s"
+        return tmpl % (tex, str(self._print(expr.function)), "".join(symbols))
 
     def _print_Limit(self, expr):
         e, z, z0, dir = expr.args

diff --git a/sympy/printing/tests/test_latex.py b/sympy/printing/tests/test_latex.py
@@ -467,6 +467,7 @@ def test_latex_integrals():
 
     # issue sympy/sympy#10806
     assert latex(Integral(x, x)**2) == r"\left(\int x\, dx\right)^{2}"
+    assert latex(Integral(z + x, z)) == r"\int \left(x + z\right)\, dz"
 
 
 def test_latex_sets():