14 lines
424 B
Python
14 lines
424 B
Python
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from sympy.tensor.tensor import TensorIndexType, tensor_indices, TensorHead
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from sympy import I
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def test_printing_TensMul():
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R3 = TensorIndexType('R3', dim=3)
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p, q = tensor_indices("p q", R3)
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K = TensorHead("K", [R3])
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assert repr(2*K(p)) == "2*K(p)"
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assert repr(-K(p)) == "-K(p)"
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assert repr(-2*K(p)*K(q)) == "-2*K(p)*K(q)"
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assert repr(-I*K(p)) == "-I*K(p)"
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assert repr(I*K(p)) == "I*K(p)"
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