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/pi_test.py

@@ -0,0 +1,15 @@
+from .context import assert_equal, _Mul, _Pow
+import pytest
+from sympy import pi, Symbol, acos, cos
+
+
+def test_pi_frac():
+    assert_equal("\\frac{\\pi}{3}", _Mul(pi, _Pow(3, -1)))
+
+
+def test_pi_nested():
+    assert_equal("\\arccos{\\cos{\\frac{\\pi}{3}}}", acos(cos(_Mul(pi, _Pow(3, -1)), evaluate=False), evaluate=False))
+
+
+def test_pi_arccos():
+    assert_equal("\\arccos{-1}", pi, symbolically=True)