初始化项目，由ModelHub XC社区提供模型

Model: nv-community/Nemotron-Cascade-8B
Source: Original Platform

evaluation/eval/tools/latex2sympy/tests/overline_test.py

@@ -0,0 +1,9 @@
+from .context import assert_equal
+import pytest
+from sympy import sin, Symbol
+
+x = Symbol('x', real=True)
+
+
+def test_overline():
+    assert_equal("\\frac{\\sin(x)}{\\overline{x}_n}", sin(x) / Symbol('xbar_n', real=True))