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diff --git a/Qwen2.5-Eval/evaluation/latex2sympy/tests/linalg_test.py b/Qwen2.5-Eval/evaluation/latex2sympy/tests/linalg_test.py
new file mode 100755
index 0000000..d6dea56
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+++ b/Qwen2.5-Eval/evaluation/latex2sympy/tests/linalg_test.py
@@ -0,0 +1,15 @@
+from .context import assert_equal
+import pytest
+from sympy import MatMul, Matrix
+
+
+def test_linalg_placeholder():
+    assert_equal("\\begin{pmatrix}1&2\\\\3&4\\end{pmatrix}\\cdot\\variable{v}", MatMul(Matrix([[1, 2], [3, 4]]), Matrix([1, 2])), {'v': Matrix([1, 2])})
+
+
+def test_linalg_placeholder_multiple():
+    assert_equal("\\variable{M}\\cdot\\variable{v}", MatMul(Matrix([[1, 2], [3, 4]]), Matrix([1, 2])), {'M': Matrix([[1, 2], [3, 4]]), 'v': Matrix([1, 2])})
+
+
+def test_linalg_placeholder_multiple_mul():
+    assert_equal("\\begin{pmatrix}3&-1\\end{pmatrix}\\cdot\\variable{M}\\cdot\\variable{v}", MatMul(Matrix([[3, -1]]), Matrix([[1, 2], [3, 4]]), Matrix([1, 2])), {'M': Matrix([[1, 2], [3, 4]]), 'v': Matrix([1, 2])})